Dr. Divakara P
Diabetology, Endocrinology, General Medicine, Internal Medicine, Pain Medicine, Pulmonology (Asthma Doctors
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It could be one possibility that sigmoidoscopy has caused an abscess, but again to prove that a repeat sigmoidoscopy has to be done. But also, there might be other causes like inflammatory bowel disease (IBD), irritable bowel syndrome (IBS), or other infections as well.
Also, I wanted to know what was your first sigmoidoscopy finding.
I advise you to get one stool culture sensitivity and one stool calprotectin test done and revert back to a general practitioner online --> https://www.icliniq.com/ask-a-doctor-online/general-practitioner
Also, if you are unwilling for sigmoidoscopy, you can get capsule endoscopy or MRI abdomen.