Most causes of abdominal pain aren't worrisome, and your doctor can easily diagnose and treat the problem. Sometimes, though, it can be a sign of a serious illness. Learn which symptoms to watch out for and when you should get medical help. What Are the Most Common Causes of Abdominal Pain? Whether you've got a mild stomachache, sharp pain, or cramps, abdominal pain can have many causes. For instance, you might have indigestion, constipation, a stomach virus, or, if you're a woman, menstrual cramps. Other possible causes include:
Concern had been expressed about the possible tumor-promoting effect of quercetin. Mild constipation and hair thinning were reported by two of 260 patients taking AS195, which contains red vine leaf extract that is rich in quercetin.
Best Answer: Iron tablets do cause black poo and can cause constipation but I also used Fefol and they are designed to be slow release and not cause constipation.I have used them for years and I've never had a problem with constipation except when I was pregnant. just now. Report Abuse. I know iron tablets can make you really constipated plus-the aren't absorbed by your body if they aren't taken with Vitamin C. If they are causing you problems why don't you just try to get iron from natural sources...which absorb better.