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Is foul-smelling gas normal in rectal Methamphetamine users?

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

Patient's Query

Hi doctor,

I have a question about a friend who has been a Methamphetamine user for six years. He does it rectally. I believe there is something wrong with him. Today, he had a fart in bed, and the smell was unlike anything I have ever experienced. It was extremely foul, almost acidic, far beyond normal. I had numbness or tingling in my own throat and tongue. I am worried something is seriously wrong. He has been using this way for about six years.

Should he see a doctor immediately?

Please guide.

Hi,

Welcome to icliniq.com.

I read your query and understand your concerns.

That smell plus the numbness or tingling you noticed is very concerning. This is not just a “bad bowel movement.” Six years of rectal use can cause severe rectal wall damage, chronic infections, ulceration, chemical burns, and even leakage of bowel contents. If there is necrosis (dead tissue) or a serious infection, the odor can become extremely foul and chemical-like. This is an emergency, not something to monitor at home.

Probable causes for this may include:

  1. Severe tissue damage from chronic rectal drug use.

  2. Infection or necrosis of rectal tissue.

  3. Possible leakage of bowel contents.

I suggest the following investigations for your friend.

  1. Full physical and rectal exam.

  2. Blood work (CBC (complete blood count), CRP (C-reactive protein), kidney and liver function).

  3. Stool culture.

  4. Abdominal imaging (X-ray or computed tomography scan) to rule out perforation or spreading infection.

The suggested treatment plan for his condition includes:

  1. Immediate ER (emergency room) visit, this could be life-threatening

  2. IV (intravenous) antibiotics, possible surgical debridement, or emergency surgery if perforation is found.

  3. Stop all rectal Methamphetamine use immediately.

After emergency stabilization, he should see a gastroenterologist or colorectal surgeon. Long-term addiction treatment and regular medical monitoring are also needed.

I hope this answers your query.

Feel free to reach out anytime.

Answered byDr. Usaid Yousuf

Medically reviewed byiCliniq medical review team

Published At October 27, 2025
Reviewed AtOctober 28, 2025

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