Foreskin Problems: Phimosis, Balanitis, BXO and Treatment Options

By Mr Neil Haldar, Consultant Urological Surgeon

Foreskin problems are among the most common reasons for boys and men to be referred to a urologist.

Symptoms may include difficulty retracting the foreskin, redness, soreness, recurrent infections, splitting during sexual activity, discomfort with erections or changes in the urinary stream. Understandably, these symptoms can cause considerable anxiety.

However, not every non-retractile foreskin is abnormal, and not every foreskin problem requires circumcision.

In children, a foreskin that does not retract is usually a normal stage of development. In adults, new tightness or scarring deserves proper assessment because it may be caused by inflammation, infection, diabetes, lichen sclerosus—also known as balanitis xerotica obliterans or BXO—or, much less commonly, a precancerous or cancerous change.

The most appropriate treatment may be reassurance, a prescribed cream, treatment for an underlying skin condition, a foreskin-preserving procedure or circumcision. The important first step is making the correct diagnosis.

In brief

• A non-retractile foreskin is usually normal in young boys.
• A child’s foreskin should never be forcibly pulled back.
• Ballooning during urination is not usually harmful if the child has a good urinary stream and no pain or recurrent infections.
• New foreskin tightness in an adult should be assessed.
• Recurrent balanitis may be associated with diabetes, irritation, infection or an underlying skin condition.
• White scarring, splitting or narrowing may indicate lichen sclerosus or BXO.
• A foreskin trapped behind a swollen glans is called paraphimosis and requires same-day emergency treatment.
• Circumcision is effective for several foreskin conditions, but alternatives may be suitable in carefully selected patients.

When is a foreskin problem an emergency?

Most foreskin conditions are not emergencies. However, urgent medical attention is required in certain situations.

Seek emergency help on the same day if:

• The foreskin is trapped behind the glans and cannot be pulled forward.
• The glans is becoming increasingly swollen, painful or discoloured.
• You or your child cannot pass urine.
• There is rapidly worsening swelling or severe pain.

A foreskin that is trapped behind a swollen glans is known as paraphimosis. It can progressively restrict blood flow and should not be left untreated. Current European Association of Urology guidance describes paraphimosis as a medical emergency requiring urgent reduction.

Do not repeatedly or forcefully attempt to correct severe paraphimosis at home. Attend an emergency department or urgent urological service.

Arrange prompt medical assessment if:

• An adult develops new or rapidly worsening foreskin tightness.
• There is a white, scarred or hardened ring around the foreskin.
• The foreskin repeatedly splits or bleeds.
• There is a persistent ulcer, lump, thickened area or non-healing sore.
• There is bleeding or foul-smelling discharge from beneath a non-retractile foreskin.
• Balanitis repeatedly returns or does not improve with appropriate treatment.
• The urinary stream has become reduced, sprayed or deflected.

Penile cancer is uncommon, with around 820 new cases diagnosed annually in the UK, but persistent or suspicious lesions should not be repeatedly treated as infection without proper assessment.

What is the foreskin?

The foreskin, or prepuce, is a double layer of skin that covers and protects the glans—the head of the penis.

Its outer surface is continuous with the skin of the penile shaft. The inner surface is a delicate mucosal layer. On the underside of the penis, the foreskin is connected to the glans by a band of tissue called the frenulum.

The foreskin has a normal protective and sensory function. Whether it should be preserved or removed depends on the individual diagnosis, the severity of symptoms, the condition of the tissue and the patient’s preferences.

Normal foreskin development in boys

At birth, the inner surface of the foreskin is usually naturally attached to the glans. This is normal and does not represent scarring or disease.

The foreskin gradually separates over childhood through natural skin-cell turnover, growth and erections. The timing varies considerably between children.

According to current EAU guidance, the foreskin can be retracted in approximately 4% of boys at birth, around half by the end of the first year and approximately 89% by the age of three. However, some degree of non-retractability can persist for much longer without being abnormal. Only around 1% of males aged 16 to 18 still have phimosis.

The important message is that a non-retractile foreskin in a young child is usually a normal developmental stage.

Should parents retract a child’s foreskin?

A child’s foreskin should not be forcibly retracted.

Forced retraction can cause pain, bleeding and small tears. As these tears heal, they can form scar tissue and create genuine pathological phimosis.

Parents should clean only what is visible externally. Once the foreskin retracts easily by itself, a boy can be taught to gently pull it back during washing and then return it to its normal position.

Current guidelines advise avoiding forced retraction because it may create secondary scarring and pathological phimosis.

What are smegma pearls?

As the foreskin naturally separates from the glans, shed skin cells may collect beneath it as a whitish material called smegma.

A small collection can appear as a white or yellow lump beneath the foreskin. This is sometimes called a smegma pearl or preputial pearl.

These collections are benign. They are not usually an infection, cyst or tumour and generally disappear as the foreskin continues to separate. They do not normally require treatment.

What is phimosis?

Phimosis means that the foreskin cannot be comfortably retracted over the glans.

The key clinical distinction is between:

• Physiological phimosis, which is part of normal childhood development.
• Pathological phimosis, in which the foreskin has become narrowed by scarring or disease.

These conditions can look superficially similar but require very different management.

Physiological phimosis in children

In physiological phimosis, the foreskin opening remains soft and supple. There is no obvious white scar tissue or hardened ring.

The child is usually comfortable and passes urine with a normal stream. There may be some ballooning of the foreskin during urination.

Physiological non-retractability does not require treatment if the child has no symptoms. In most cases, reassurance and time are all that is needed.

Is ballooning of the foreskin dangerous?

Parents often notice that a child’s foreskin expands or “balloons” while he urinates.

Ballooning occurs because urine temporarily enters the space between the glans and the foreskin before leaving through the foreskin opening.

When the child has a good urinary stream, no discomfort and no recurrent infections, ballooning is usually harmless. It tends to improve as the foreskin becomes more retractable.

Ballooning alone is not an indication for circumcision. Current EAU guidance recognises non-retractability, adhesions and ballooning as potentially normal developmental stages before puberty.

Can steroid cream help phimosis?

Topical corticosteroid treatment may be appropriate when a child has symptomatic, non-scarred phimosis.

A prescribed steroid cream or ointment is applied directly to the tight foreskin ring, usually for four to eight weeks. Gentle, non-forceful retraction may be advised alongside treatment.

When used correctly, topical corticosteroids are successful in more than 80% of appropriately selected cases, although narrowing can recur. The medication should be used under medical supervision and applied to the correct area.

An asymptomatic foreskin that is simply developing normally does not need to be treated merely to make it retract sooner.

Pathological phimosis

Pathological phimosis develops when the foreskin opening becomes scarred, thickened and less elastic.

Possible signs include:

• A pale or white fibrotic ring at the foreskin opening.
• Cracking, splitting or bleeding.
• Loss of the normal soft and flexible appearance.
• Pain when attempting retraction.
• Painful erections or sexual intercourse.
• Recurrent inflammation or infection.
• A reduced, sprayed or deflected urinary stream.
• Ballooning associated with straining, discomfort or poor urinary flow.

Pathological phimosis is unlikely to disappear simply with time. Some cases may respond to topical treatment, but established scarring, suspected BXO or persistent symptoms frequently require surgery.

What causes phimosis in adults?

A foreskin that has always been slightly tight may only become troublesome when sexual activity begins or when inflammation develops.

However, new-onset phimosis in an adult should always be assessed.

Possible causes include:

Lichen sclerosus or BXO

Lichen sclerosus is an inflammatory skin condition that can cause progressive whitening, hardening and narrowing of the foreskin.

Recurrent balanitis

Repeated episodes of inflammation may cause small tears and progressive scar formation.

Diabetes

Glucose in the urine encourages yeast growth and inflammation. Recurrent candidal balanitis or new phimosis can occasionally be the first indication that someone has previously undiagnosed or poorly controlled diabetes.

Repeated minor trauma

Tightness may cause the foreskin to split during intercourse. Repeated healing can produce additional scar tissue and make the opening progressively tighter.

Chronic skin conditions

Eczema, psoriasis, lichen planus and contact dermatitis can all affect the penis.

Penile cancer or precancerous change

This is much less common, but a foreskin that becomes newly non-retractile—particularly when accompanied by bleeding, discharge, an ulcer or a lump beneath it—requires prompt assessment.

Balanitis and balanoposthitis

Balanitis means inflammation of the glans.

Posthitis means inflammation of the foreskin.

When both are affected, the condition is called balanoposthitis.

Symptoms can include:

• Redness.
• Soreness or burning.
• Itching.
• Swelling.
• Discharge.
• An unpleasant smell.
• Pain during retraction.
• Pain during sexual intercourse.
• Discomfort when passing urine.

Balanitis is a description of inflammation rather than a single diagnosis. Treatment depends on identifying the underlying cause.

What causes balanitis?

Irritation and over-washing

Soap, fragranced shower gels, antiseptics and excessive washing are common causes of persistent soreness.

The glans and inner foreskin are sensitive tissues. Repeated washing with detergents can remove natural protective oils and create an ongoing cycle of irritation.

Latex condoms, lubricants, spermicides, laundry products and topical medications can also cause contact reactions.

Candida

Candida is a yeast that can cause itching, redness and discharge. It is more likely in men with diabetes, following antibiotic use or when moisture is trapped beneath a tight foreskin.

However, Candida may sometimes be a secondary infection affecting skin that is already inflamed by dermatitis, lichen sclerosus or another condition. Recurrent “thrush” that repeatedly returns after antifungal treatment therefore deserves reassessment rather than repeated empirical treatment.

The current BASHH guideline on balanoposthitis reflects the importance of distinguishing infection from underlying inflammatory penile skin disease.

Bacterial infection

Streptococcal, staphylococcal and anaerobic organisms can cause balanitis. Anaerobic infection may produce a particularly unpleasant-smelling discharge.

Sexually transmitted infections

Herpes, syphilis and other sexually transmitted infections can sometimes present with inflammation, ulcers or discharge.

Sexual health testing may be appropriate when the appearance, symptoms or sexual history suggest a possible sexually transmitted infection.

Skin conditions

Psoriasis, eczema, lichen planus, lichen sclerosus and other inflammatory skin diseases can involve the penis. In some patients, the genital area may be the only visibly affected site.

Zoon’s balanitis

Zoon’s balanitis, also called plasma-cell balanitis, usually affects older uncircumcised men.

It commonly produces a shiny, moist, orange-red or reddish-brown patch on the glans or inner foreskin. It is benign but can resemble a precancerous lesion. Specialist assessment and sometimes biopsy may be needed to confirm the diagnosis.

Poorly controlled diabetes

Persistent or recurrent balanitis, particularly when candidal infection is suspected, may justify glucose testing or an HbA1c blood test.

How is balanitis treated?

Treatment depends on the suspected cause.

Initial measures often include:

• Washing with lukewarm water or a gentle soap substitute.
• Avoiding fragranced soaps, shower gels and antiseptics.
• Drying carefully after washing.
• Avoiding excessive washing.
• Retracting the foreskin gently for cleaning only if this is comfortable.
• Returning the foreskin to its normal position afterwards.

Depending on the diagnosis, treatment may include:

• An antifungal cream.
• An antibiotic.
• A mild or potent topical corticosteroid.
• An emollient or barrier preparation.
• Treatment for an underlying skin condition.
• Diabetes assessment and improved glucose control.
• Sexual health testing and treatment where indicated.

Recurrent balanitis or inflammation that does not respond to appropriate treatment should be reviewed by a specialist. Circumcision may be considered when repeated inflammation continues despite appropriate conservative management.

Lichen sclerosus and BXO

Male genital lichen sclerosus is a chronic inflammatory skin condition affecting the foreskin, glans and sometimes the urethral opening.

When it affects the penis, it has traditionally been called balanitis xerotica obliterans, or BXO. The terms are often used interchangeably.

The precise cause is not fully understood. It is not a sexually transmitted infection and cannot be passed to a partner.

What does BXO look like?

Possible features include:

• A porcelain-white or pale patch on the foreskin or glans.
• A white, hardened ring around the foreskin opening.
• Loss of normal elasticity.
• Cracking, splitting or bleeding.
• Soreness or itching.
• Painful erections.
• Difficulty retracting the foreskin.
• Narrowing of the urinary opening.
• A reduced, sprayed or deflected urinary stream.

BXO is an important cause of pathological phimosis in boys and adults. It is also important because it may extend beyond the foreskin to affect the glans, urinary opening or urethra.

Why does BXO matter?

Progressive scarring

The condition can make the foreskin increasingly rigid and non-retractile.

Meatal stenosis

If the urinary opening is affected, it may become narrowed. This can cause a thin, sprayed, deflected or prolonged urinary stream.

Urethral involvement

In a minority of patients, scarring may extend into the urethra and cause a urethral stricture.

Current EAU guidance recommends prolonged follow-up in patients with BXO because of the risk of meatal stenosis or urethral involvement.

Association with penile cancer

Lichen sclerosus is associated with a small increased risk of penile cancer.

The absolute risk remains low, but any persistent ulcer, lump, thickened area, bleeding lesion or change that does not respond to treatment should be reassessed promptly.

How is BXO treated?

Treatment depends on the location and severity of the disease.

Potent topical corticosteroids

A prescribed potent topical corticosteroid is often used to control active inflammation, particularly during the earlier stages of the condition.

Patients should be shown exactly where and how to apply the medication. Some require intermittent maintenance treatment and follow-up.

Circumcision

When BXO has caused established foreskin scarring and phimosis, circumcision is usually the definitive treatment for the affected foreskin.

Removed tissue should normally be sent for histological examination, particularly where BXO, another dermatosis or an atypical lesion is suspected.

Foreskin-preserving procedures are generally not recommended when BXO is confirmed because diseased tissue would be left behind and narrowing may recur.

Treatment of the meatus or urethra

If the urinary opening has narrowed, a meatotomy or meatoplasty may be required.

More extensive urethral disease may need specialist reconstructive surgery. Patients with glans, meatal or urethral involvement may require continued surveillance even after circumcision.

Paraphimosis

Paraphimosis occurs when a retracted foreskin becomes trapped behind the glans and cannot be returned to its normal position.

The tight foreskin ring restricts the drainage of blood and tissue fluid. The glans and foreskin become swollen, which makes the constriction progressively tighter.

Typical features include:

• A swollen and painful glans.
• A visible tight band behind the glans.
• A ring of swollen foreskin.
• Increasing difficulty pulling the foreskin forward.
• Darkening or discolouration in severe cases.

Common circumstances include:

• The foreskin not being replaced after catheterisation.
• Retraction during an examination.
• Retraction for cleaning.
• Sexual activity.
• A patient being unable to replace the foreskin because of reduced mobility or cognitive impairment.

Paraphimosis requires same-day treatment, and you should seek attention urgently. A clinician will usually attempt manual reduction after appropriate pain relief or anaesthesia. If this is unsuccessful, a surgical incision may be required to release the constriction.

After the swelling has settled, the underlying foreskin narrowing should be assessed. Circumcision or another corrective procedure may be recommended to reduce the risk of recurrence.

Frenulum breve

The frenulum is the band of tissue on the underside of the penis connecting the foreskin to the glans.

In frenulum breve, the frenulum is too short or tight. This can pull the glans downwards when the foreskin is retracted or during an erection.

Symptoms may include:

• Pain during intercourse.
• Pain when retracting the foreskin.
• Downward bowing of the glans.
• Recurrent splitting or tearing.
• Bleeding from the underside of the penis.
• Avoidance of sexual activity because of anticipated pain.

The frenulum contains a small artery, so even a relatively small tear may bleed significantly.

An isolated tear may settle with pressure and conservative care. Recurrent tearing can lead to further scarring and persistent symptoms.

Frenuloplasty

Frenuloplasty is a short, foreskin-preserving operation that lengthens the frenulum.

The tight band is divided and reconstructed in a way that increases its length. It is normally performed as a day-case procedure under local or general anaesthesia.

For appropriately selected patients, frenuloplasty can relieve pain, reduce recurrent tearing and preserve the foreskin.

Preputial adhesions and skin bridges

Preputial adhesions and skin bridges are different conditions.

Preputial adhesions

These are areas where the inner foreskin remains naturally attached to the glans.

They are common in children and normally separate by themselves. They do not usually require treatment unless they persist and cause significant symptoms.

Current EAU guidance recommends waiting for spontaneous resolution of asymptomatic preputial adhesions before puberty.

Skin bridges

A skin bridge is a more permanent band of tissue between the penile skin and the glans.

Skin bridges may develop after circumcision, significant inflammation or tissue injury. They can:

• Trap smegma.
• Pull on the glans.
• Cause pain during erections.
• Affect the cosmetic appearance.

Unlike physiological adhesions, established skin bridges do not normally separate by themselves and may require surgical division.

Buried or concealed penis

A buried penis is a penis of normal size that is partly or completely hidden by surrounding tissue.

Possible causes include:

• Excess suprapubic fat.
• Abnormal attachment of the skin at the base of the penis.
• Congenital anatomical differences.
• Scarring after surgery.
• Removal of too much penile skin during circumcision.

A buried penis can create secondary problems such as:

• Persistent moisture.
• Recurrent inflammation.
• Difficulty directing the urinary stream.
• Phimosis or scarring.
• Problems with hygiene.
• Psychological distress.

Circumcision alone may make a buried penis worse by removing skin that may be required for reconstruction.

Simple circumcision should also be avoided in boys with conditions such as hypospadias, epispadias or congenital penile curvature because the foreskin may be needed during reconstructive surgery. Current EAU guidance specifically advises against simple circumcision in these circumstances.

A child whose urinary opening is not at the tip of the penis, whose penis appears buried or significantly curved, or whose anatomy otherwise appears unusual should be assessed before circumcision.

How are foreskin problems assessed?

Assessment begins with a careful history.

Relevant questions may include:

• When did the problem begin?
• Has the foreskin ever retracted normally?
• Is there pain, itching, splitting or bleeding?
• Are erections painful?
• Is there recurrent inflammation or discharge?
• Has the urinary stream changed?
• Is there a history of diabetes or skin disease?
• Have creams or antibiotics already been used?
• Could a sexually transmitted infection be relevant?

Examination may assess:

• The foreskin opening.
• The presence of a white or scarred ring.
• The glans and inner foreskin.
• The frenulum.
• The urinary opening.
• Any ulcer, lump, plaque or persistent red area.
• Whether the foreskin can be retracted and replaced safely.
• The groin lymph nodes when a suspicious lesion is present.

Additional investigations may include:

• Urinalysis.
• Blood or urine glucose testing.
• HbA1c testing.
• Swabs where infection is suspected.
• Sexual health tests.
• Urinary flow measurement.
• Biopsy of an uncertain or suspicious lesion.

A biopsy is not required for every episode of balanitis. It may be recommended when the diagnosis remains uncertain, when a lesion persists despite appropriate treatment or when a precancerous or cancerous change must be excluded.

Treatment options for foreskin problems

The right treatment depends on the diagnosis rather than on tightness or redness alone.

Conservative treatment

Conservative measures may include:

• Avoiding soaps and irritants.
• Using an emollient or soap substitute.
• Treating fungal or bacterial infection.
• Treating an underlying inflammatory skin condition.
• Improving diabetic control.
• Gentle, non-forceful stretching under medical guidance.
• A prescribed topical corticosteroid.

These treatments may resolve symptoms without surgery, particularly when there is no established scarring.

Preputioplasty

Preputioplasty is a foreskin-preserving operation used to widen a localised tight foreskin opening.

One or more small incisions are made through the narrow ring and closed in a different direction to increase its circumference.

It may be considered when:

• The narrowing is localised.
• There is no evidence of BXO.
• The surrounding foreskin is healthy.
• The patient wishes to preserve the foreskin.

The main advantage is preservation of the foreskin. However, narrowing can recur, and some patients later require circumcision.

Preputioplasty is generally unsuitable when there is confirmed BXO, diffuse scarring or significantly diseased foreskin.

Frenuloplasty

Frenuloplasty is the preferred foreskin-preserving operation for an isolated short frenulum.

It does not treat a scarred foreskin ring, although frenulum breve and mild phimosis can coexist and may need to be addressed together.

Circumcision

Circumcision involves removing the foreskin while preserving an appropriate covering of penile skin.

It may be recommended for:

• Pathological phimosis that has not responded to conservative treatment.
• BXO affecting the foreskin.
• Recurrent balanitis despite appropriate treatment.
• Recurrent paraphimosis.
• Severely scarred or repeatedly splitting foreskin.
• Certain persistent or suspicious foreskin lesions.

Circumcision is normally performed as a day-case procedure. Children usually have a general anaesthetic. Adults may have local or general anaesthesia depending on the circumstances and their preference.

The planned extent of skin removal and likely cosmetic result should be discussed before surgery.

Recovery after circumcision

Swelling, bruising and sensitivity are expected during the early recovery period.

Dissolvable sutures are usually used and may take several weeks to disappear. The glans can initially feel unusually sensitive because it is no longer covered by the foreskin.

Patients are normally advised to:

• Use simple pain relief as directed.
• Keep the wound clean and dry according to their surgeon’s instructions.
• Wear supportive or loose clothing according to comfort.
• Avoid strenuous exercise during the early recovery period.
• Avoid sexual activity and masturbation until the wound has healed, commonly for four to six weeks.

The time needed away from work depends on the type of work, postoperative discomfort and individual recovery.

Risks of circumcision

Possible complications include:

• Bleeding.
• Infection.
• Wound separation.
• Delayed healing.
• Excessive or insufficient skin removal.
• Persistent swelling.
• An unsatisfactory cosmetic result.
• Altered sensation.
• Meatal stenosis, particularly in patients with BXO.
• The need for further surgery.

Serious complications are uncommon when surgery is performed by an appropriately trained surgeon.

Research has not shown a consistent clinically significant reduction in overall sexual function following circumcision. However, individual experiences of sensation vary, and this is a reasonable subject to discuss before surgery.

For men undergoing circumcision because of painful phimosis, repeated splitting or BXO, sexual comfort may improve because the underlying pain and restriction have been resolved.

Frequently asked questions

Summary

Foreskin problems include normal childhood non-retractability, symptomatic phimosis, balanitis, lichen sclerosus or BXO, paraphimosis, frenulum breve and less common penile skin conditions.

Correct diagnosis matters because treatment varies considerably.

A healthy non-retractile foreskin in a young child usually requires reassurance rather than surgery. Symptomatic, non-scarred phimosis may respond to a prescribed topical corticosteroid. Balanitis requires treatment of its underlying cause. Frenulum breve can often be treated with a foreskin-preserving frenuloplasty.

Circumcision remains an effective treatment for established pathological phimosis, foreskin scarring from BXO, recurrent balanitis that has not responded to conservative measures and recurrent paraphimosis.

At the same time, persistent ulcers, lumps, bleeding areas or unexplained new adult phimosis should be assessed promptly so that uncommon but important conditions are not missed.

The aim should never be to preserve or remove the foreskin at all costs. It should be to make an accurate diagnosis and choose the safest and most appropriate treatment for the individual patient.

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This article is intended for general information and does not replace an individual medical assessment. A painful, swollen glans with the foreskin trapped behind it, an inability to pass urine, or rapidly worsening penile swelling requires same-day emergency medical care.

Clinical sources: European Association of Urology Guidelines on Paediatric Urology; British Association for Sexual Health and HIV guideline on balanoposthitis; British Association of Dermatologists information on male genital lichen sclerosus and penile skin care; Cancer Research UK penile cancer statistics.