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There is fish smell in feces after unprotected anal sex. Please advise.

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

Patient's Query

Hello doctor,

I am a 21-year-old male who had unprotected anal sex. Two days after, my feces have a very light fish smell with mucus, very light abdominal pain, and light pain in both testicles. I have always had very light pain in my testicles, but feeling it the second day after anal sex makes me a little concerned.

Please help.

Thank you.

Hi,

Welcome to icliniq.com

I read your query and understand your concern.

When was this exposure?

Unprotected anal exposure carries a high risk of acquiring HIV (Human immunodeficiency virus) and other STIs.The symptoms could have various reasons. I suggest you get tested for HIV and other STIs (sexually transmitted infections). You can get an HIV fourth-generation rapid test now (to know about your baseline status), then at four weeks after the exposure, and if this result is negative, get a confirmatory HIV antibody test at three months after the last exposure.

I hope this addresses your concerns.

Please feel free to follow up if you need any additional clarification.

Thank you.

Patient's Query

Hi doctor,

Thank you for the excellent and detailed response.

This exposure was two days ago.

Please help.

Thank you.

Hi,

Welcome back to icliniq.com.

Then you require post-exposure prophylaxis for HIV. It needs to be started within 72 hours of unprotected exposure.

I hope this helps address your query.

Kindly revert with the answers.

Thank you.

Medically reviewed byiCliniq medical review team

Published At July 21, 2018
Reviewed AtJune 10, 2026

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Post-Exposure Anal Sex STI Risk Awareness Builder

Unprotected anal sex?

Five quick questions help you understand your potential risk for sexually transmitted infections (STIs) after unprotected anal sex. This tool helps you identify what is typically fine, what to mention to your doctor, and what warrants a call today.

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