Genital Warts and HPV: Assessment, Diagnosis and Management

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Genital warts are benign skin or mucosal lesions most often caused by non-oncogenic types of human papillomavirus (HPV). Diagnosis is usually clinical: the appearance, location and behaviour of the lesion are considered together with the person’s history. Not every genital bump is a wart, routine HPV testing does not confirm whether a visible lesion is a genital wart, and treatment of the wart does not necessarily remove HPV from the body. The first task is therefore to establish what the lesion is and whether it needs treatment.

What are genital warts?

Genital warts, also called anogenital warts or condylomata acuminata, are epithelial growths that can occur on genital or anal skin and mucosa. Around 90% of anogenital warts are associated with HPV types 6 or 11, which are considered non-oncogenic types.

Warts may be:

• single or multiple;
• flat, raised, papular or pedunculated;
• smooth or papillomatous;
• flesh-coloured, pink, brownish or differently pigmented from the surrounding skin;
• very small or clustered over a larger area.

HPV infection can exist without any visible wart. Conversely, a visible bump in the genital area is not automatically caused by HPV.

Is every genital bump caused by HPV?

No. Normal anatomy and several skin or sexually transmitted conditions can resemble genital warts. Depending on the site and appearance, the differential diagnosis can include:

• pearly penile papules and other normal anatomical variants;
• Fordyce spots or prominent sebaceous glands;
• skin tags;
• folliculitis;
• molluscum contagiosum;
• seborrhoeic keratosis;
• irritation or friction-related changes;
• condylomata lata associated with secondary syphilis;
• inflammatory skin disease;
• premalignant or malignant lesions.

Comparing a lesion with internet photographs is not a reliable diagnostic method. Lighting, angle and image quality can conceal clinically important details, and very different conditions can look similar in photographs.

For a symptom-focused overview, see genital wart symptoms.

When should a genital lesion be assessed?

Medical assessment is appropriate when a new genital or perianal growth appears and the diagnosis is uncertain. It is particularly important when a lesion:

• increases in number or size;
• bleeds, ulcerates or becomes painful;
• is unusually dark, hard or fixed to underlying tissue;
• is located at or inside the urethral opening;
• occurs with anal bleeding, discharge or pain;
• persists despite an appropriate course of treatment;
• changes significantly during treatment;
• occurs in someone with an immunocompromising condition or treatment.

A new genital growth should not be cut, punctured, burned or treated with ordinary over-the-counter wart acids intended for hands or feet. Genital skin and mucosa are more vulnerable to chemical injury.

What happens during clinical assessment?

Assessment begins with history and examination. Relevant questions may include:

• when the lesion was first noticed;
• whether its size, colour, surface or number has changed;
• itching, pain, bleeding, discharge or urinary symptoms;
• previous genital warts or other sexually transmitted infections;
• previous creams, procedures or medicines used on the area;
• known genital lesions or infections in a partner;
• HPV vaccination history;
• conditions or medicines affecting immune function;
• smoking and other relevant health factors.

The clinician may examine the shape, surface, colour, firmness, distribution and anatomical position of the lesion. Where appropriate, nearby genital and perianal areas may also be inspected rather than examining only the most obvious bump.

The scope of an intimate examination should be explained in advance and carried out with consent and respect for privacy.

Does every external wart require examination of the urethra or anal canal?

No. Further examination depends on location and symptoms.

A lesion at the urethral meatus, altered urine flow, bleeding from the opening or suspicion of an internal urethral lesion may justify urological assessment. This does not mean that every external penile wart requires urethral instrumentation.

External perianal warts do not automatically prove that warts are present inside the anal canal. When lesions appear to extend internally, or when there is anal bleeding, discharge, pain or another concerning symptom, digital examination or anoscopic assessment may be considered according to the clinical setting.

Does an HPV test confirm that a bump is a genital wart?

Usually not. Current CDC guidance does not recommend HPV testing for the diagnosis of anogenital warts because the result does not confirm the nature of the visible lesion and usually does not change wart management.

This distinction matters because:

• a positive HPV result does not prove that a particular bump is a wart;
• a negative sample from one site does not establish that HPV is absent elsewhere;
• the result usually does not determine which wart treatment should be selected;
• testing cannot establish when the infection was acquired or from whom.

HPV tests used in cervical-cancer screening have a different purpose and should not be confused with diagnostic testing for genital warts. There is no approved general screening test that establishes a man’s overall “HPV status”.

When may a biopsy be needed?

Most typical genital warts do not need biopsy. A tissue sample becomes more relevant when the diagnosis is uncertain or the lesion has atypical features.

Examples include a lesion that is:

• pigmented in an unusual way;
• indurated or fixed to underlying tissue;
• bleeding without an obvious explanation;
• ulcerated;
• rapidly changing;
• not responding to standard management;
• worsening during treatment;
• clinically suspicious for intraepithelial neoplasia or cancer.

Biopsy may also be considered more readily in immunocompromised patients when the appearance is unusual. A recommendation for biopsy does not mean that cancer has already been diagnosed; it is a way to distinguish lesions that can look similar on visual inspection.

Should other sexually transmitted infections be considered?

A genital wart does not mean that another STI is necessarily present. However, genital warts are sexually transmissible, and a person’s history or symptoms may justify testing for other infections.

Urethral discharge, dysuria, genital ulceration, painful blisters, lymph-node swelling or a known STI in a partner can change which tests are appropriate. The relevant sample may be urine, a swab or blood depending on the suspected infection and site of exposure.

A fixed “STI panel” is not appropriate in every situation. Testing is more useful when it matches the exposure history, anatomical site and suspected infection.

Are genital warts cancer?

Typical genital warts are benign and are most often associated with low-risk HPV types, especially HPV 6 and 11. The HPV types that most commonly cause warts are different from the high-risk HPV types more strongly associated with cancer.

That does not mean that every genital lesion can safely be assumed to be a wart. Premalignant and malignant lesions can mimic warts, and oncogenic HPV types may occasionally coexist with wart-associated types. Bleeding, ulceration, firmness, fixation, unusual pigmentation or failure to respond to treatment should therefore prompt reassessment.

A positive HPV result is also not a cancer diagnosis. Cancer risk is associated particularly with persistent infection by oncogenic HPV types and other individual risk factors.

How is genital-wart treatment selected?

No single treatment is appropriate for every patient or every wart. Selection can depend on:

• number and size of lesions;
• anatomical site;
• whether all lesions are accessible for self-applied treatment;
• whether the warts are clustered or extensive;
• previous treatments and response;
• immune status;
• pregnancy where relevant;
• expected adverse effects and healing needs;
• patient preference and local treatment availability.

Current guidance divides options broadly into patient-applied prescription treatments and clinician-applied therapies such as cryotherapy, chemical treatment or surgical/ablative removal. Internal urethral, anal, vaginal or cervical lesions require site-specific assessment.

For the treatment options themselves, see genital wart treatment.

Does removing genital warts eliminate HPV?

Not necessarily. Treatment is directed at visible warts and associated symptoms. It does not function as a treatment that reliably eradicates HPV infection from the body.

After visible lesions clear:

• HPV may still be present;
• transmission risk is not known to become zero immediately;
• new warts may appear;
• there is no test that predicts exactly when an individual’s infection will become undetectable.

The immune system often controls HPV over time, but the timing differs between individuals. This is why it is more accurate to distinguish wart clearance from viral clearance.

Read more about genital wart recurrence.

Is observation ever an option?

Yes, in selected cases. Without treatment, a confirmed genital wart may regress, stay clinically similar or become larger or more numerous. For a typical, asymptomatic lesion with a secure diagnosis, observation may therefore be discussed rather than assuming that every wart must be removed immediately.

Observation is less appropriate when the diagnosis is uncertain, the lesion is changing, symptoms are significant, the site creates functional concerns, or there are atypical features that warrant biopsy or specialist assessment.

What should partners know?

HPV can be transmitted even when no wart is visible, and partners often share HPV. It is usually impossible to determine exactly when infection was acquired or which partner transmitted it.

Condoms can reduce the likelihood of HPV transmission but do not provide complete protection because HPV can involve skin not covered by the condom. Routine HPV testing of the partners of people with genital warts is not recommended; examination and testing for other STIs may be useful according to symptoms and risk.

For the relationship and testing questions in more detail, see HPV partner management and how HPV spreads.

Does HPV vaccination treat an existing wart?

No. HPV vaccines are preventive vaccines. They can reduce the risk of future infection and disease caused by vaccine-covered HPV types, but they do not remove a current wart or eradicate an established HPV infection.

A previous HPV infection or genital-wart history does not necessarily mean that a person has encountered every HPV type included in a vaccine. Whether vaccination is appropriate depends on age, previous vaccination, local recommendations and individual circumstances.

See HPV vaccination for men.

When should assessment not be delayed?

Prompt assessment is appropriate for a lesion that is ulcerated, repeatedly bleeding, hard, fixed, rapidly enlarging or markedly pigmented; for unexplained urethral or anal bleeding; or when the lesion is associated with significant pain, obstruction or systemic illness.

These findings are not proof of cancer or another serious condition. They are reasons not to assume that the lesion is a routine genital wart without examination.

Medical information note

This material is for general medical education. A photograph or written description is insufficient to establish the nature of a genital lesion; management depends on examination, anatomical site, lesion pattern and individual clinical factors.