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Is Your Poop Too Loose? Here’s What Doctors Want You to Know


For starters, everybody poops, and there’s no “right” way to do it, says Larry Good, M.D., a board-certified gastroenterologist affiliated with Concierge Choice Physicians. “Each of us poops differently,” and some people always tend to have bowel movements (BMs) that are kind of watery—and that might be fine, he says. The key is to pay attention to what’s normal for you. (Want to pick up some healthier habits? Sign up to get healthy living tips delivered straight to your inbox!)

What GI docs really care about is when patterns change. So if your stool is suddenly much looser than it used to be—and it doesn’t get better within a few days—it’s time to talk to your doctor. The National Institute of Diabetes and Digestive and Kidney Diseases suggests that adults who’ve had diarrhea for more than two days seek medical help; if you have a fever or notice blood or pus in your stool, you probably ought to phone your physician even sooner.

What’s causing your new digestive discomfort? Good says the possibilities are vast: It could be a viral or bacterial infection, a side effect of a medication you’re taking (like an antibiotic), a recently-developed food intolerance or allergy, or a chronic condition like irritable bowel syndrome. If your bowel issues are accompanied by weight loss, anemia, or severe pain, consider it a red flag that something more serious, like colon cancer, could be to blame.

When you see a doctor, he will likely ask you to describe how severe your loose stools are, says Good. “There is actually a scale, the Bristol Stool Scale, that is used in scientific studies to quantify the severity of diarrhea,” he says. Level 1 is constipated, level 7 is super watery, and levels 4 and 5 are normal. Meanwhile, the consistency of your BMs isn’t the only change worth tracking: If you’re going more or less often than you used to, that’s important to discuss with your doc, too.

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