What causes a spot on the penis shaft?

This Premium Q&A, reviewed and published, features a real conversation between an iCliniq user and a physician.

Patient's Query

Hello doctor,

I have a spot on my penis shaft. I took an STD test, and it showed negative. However, I am concerned that it could be something more serious. The genitourinary specialist prescribed me Eumovate. I have no other symptoms. What do you think it could be? Should I be concerned? Kindly help.

Thank you.

Answered by Dr. Yousef Abbas

Hi,

Welcome to icliniq.com.

I understand your concern.

The problem is that you did not mention the period between the appearance of the lesion and the STD (sexually transmitted diseases) test.

For example, syphilis, which could cause such lesions in stage 1 has a diagnostic window of about 10 to 12 weeks. If the lesion had been there (before three months) and you had tested it now, the test would have been valid. Shorter intervals make the result invalid. That is the case with many STDs (human immunodeficiency virus - 10 to 16 weeks, hepatitis C virus - three to six months, and syphilis - 10 to 12 weeks). So, I suggest you repeat the standard syphilis test - Treponema pallidum hemagglutination (TPHA) when you are sure that 12 weeks have passed. If it is still negative, then a tiny biopsy probe (which does not hurt) can be taken to check what is wrong with the skin. Visual diagnoses of the skin are extremely unreliable. Therefore, I would always suggest a small diagnostic biopsy.

I hope this helps.

Please revert in case of further queries.

Thank you.

The Probable causes

The probable cause is STD (sexually transmitted disease), which is still possible.

Investigations to be done

Do Treponema pallidum hemagglutination (TPHA) again, a minimum of 12 weeks since the lesion appeared. If negative, a small diagnostic biopsy can be done to get a diagnosis from a histopathologist.

Differential diagnosis

The differential diagnoses are syphilis, wart, eczema and others.

Probable diagnosis

The probable diagnosis is telomere biology disorders (TBD).

Treatment plan

The treatment plan is to treat telomere biology disorders (TBD).

Preventive measures

Use condoms until the diagnosis is definitive.

Regarding follow up

Have a follow-up with the final result.

Was this conversation helpful?

Answered by Dr. Yousef Abbas

Medically reviewed by Dr. K. Shobana

April 28, 2022

November 13, 2024

Same symptoms don't mean you have the same problem. Consult a doctor now!

Dr. Yousef Abbas

Andrology

Consult this doctor

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