Squamous Cell Carcinoma of the Penis: Symptoms, Diagnosis, and Treatment

Penile squamous cell carcinoma: early symptoms, causes and risk factors, diagnosis, biopsy, stages, and modern treatment options.

What is squamous cell carcinoma of the penis?

Penile squamous cell carcinoma is a malignant tumor that arises from cells of the skin and mucosal surfaces of the penis. It is uncommon, but it still needs timely diagnosis and treatment.

Squamous cell carcinoma is the most frequent type of penile cancer. When found early, it is often highly treatable.

The tumor may appear on the glans, foreskin, or shaft. Early disease may cause little pain — so men sometimes postpone seeing a doctor.

Important: any lasting change on the penile skin deserves a specialist exam.

How can it look?

Early signs vary. Possible features include:

• a red or whitish patch;
• a firm area or small nodule;
• an ulcer that will not heal;
• a scaly or altered skin surface;
• a wart-like growth;
• bleeding after light contact;
• unpleasant odor or discharge;
• a change in the appearance of the glans or foreskin.

As disease advances, inguinal lymph nodes may enlarge.

Important: these signs do not automatically mean cancer. Similar changes occur with inflammation, infection, and other skin conditions. A final diagnosis follows evaluation and, when needed, biopsy.

Causes and risk factors

A single cause is not always found. Factors that raise risk include:

• human papillomavirus (HPV), especially certain high-risk types;
• smoking;
• phimosis — inability to fully retract the foreskin;
• chronic inflammation;
• poor hygiene;
• some precancerous skin conditions;
• older age, especially after 60.

Having one or more risk factors does not mean cancer will definitely develop.

Available data link HPV with roughly one-third of penile cancer cases.

Precancerous conditions

Some skin and mucosal changes are considered precancerous, for example:

• Bowen disease — involvement of shaft skin;
• erythroplasia of Queyrat — involvement of the glans;
• other forms of penile intraepithelial neoplasia (PeIN).

These changes should not be ignored. In some forms, untreated disease can progress to invasive squamous cell carcinoma.

How is it diagnosed?

Assessment starts with a clinical exam: appearance, size, location, and character of the change.

If malignancy is suspected, biopsy is the main confirmatory test. A small tissue sample is reviewed under the microscope. Histology establishes tumor type and key features.

Further imaging or tests may be needed to assess spread and lymph nodes.

Stages

The disease is often described in stages — from early localized forms to more extensive disease.

Staging guides treatment planning. Clinicians commonly use the TNM system: size and depth of the primary tumor, regional lymph-node status, and distant metastases.

Treatment

Treatment depends on tumor size and site, depth of invasion, type and grade, lymph-node status, and metastases.

Possible approaches:

Surgery

Surgery is a cornerstone of care. For small, superficial tumors, organ-sparing surgery may be possible in selected cases. More extensive tumors may require a larger operation.

Radiation therapy

Radiation may be used for some localized tumors and in other situations decided by the oncology team.

Lymph-node management

Penile squamous cell carcinoma often spreads first to inguinal lymph nodes. Assessing those nodes is central to work-up and treatment choice. When indicated, involved nodes are removed surgically.

Systemic therapy

For advanced disease, systemic options such as chemotherapy and other modern drug approaches may be used. Drug choice depends on the clinical picture.

Can it be cured?

Yes — especially when found early.

Early-stage penile cancer often responds well to treatment. Outlook depends on stage, tumor features, size and depth, and lymph-node involvement.

The earlier a suspicious lesion is found, the greater the chance of timely care and, in some cases, organ and function preservation.

When to see a doctor

Do not wait for pain or major growth. Seek care if you notice:

• an ulcer that does not heal;
• a new growth or firm spot;
• a change in skin color;
• an unusual patch on the glans or shaft;
• bleeding;
• discharge;
• a foreskin change;
• enlarged inguinal lymph nodes.

Any change lasting several weeks or slowly enlarging deserves evaluation.

Prevention

Risk cannot be eliminated entirely, but some factors can be reduced:

• practice good genital hygiene;
• quit smoking;
• treat chronic inflammatory disease promptly;
• see a doctor for unusual changes;
• discuss HPV vaccination with a clinician.

Regular attention to penile skin helps detect suspicious changes earlier.

Bottom line

Squamous cell carcinoma of the penis is rare but serious. First signs can mimic ordinary inflammation, infection, or another skin problem.

If a growth, patch, or ulcer does not resolve, do not self-treat. You need a specialist exam and, when indicated, a biopsy.

Earlier diagnosis widens treatment options and improves prognosis.

This article is for general information and does not replace a doctor’s consultation.