A member asked:

Why do i always get severe abdominal pain and explosive diarrhea after having sex? had hysterectomy and colonoscopy was normal

6 doctors weighed in across 2 answers

Catecholamine : Producing cells in the GI tract, perhaps a small cluster, triggered to release substances that cause your symptoms after an orgasm or other intense autonomic surge. Have your doctor consider a 24 hour urine test for VMA and related substances or other non invasive testing to confirm or rule out such a phenomenon . Did you have endometriosis in the past ?

Answered 11/27/2017

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Scar tissue: I could imagine that there is scar tissue between the vaginal cuff and the colon. Pulling on the colon could cause pain and irritation interfering with the regular rhythm of peristalsis, which in turn causes the diarrhea.

Answered 1/6/2018

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