When is diarrhea serious

These symptoms usually occur when an infection is causing diarrhea. If you have watery stools, you might wonder how long your diarrhea will last. Acute diarrhea generally lasts for 1 to 2 days. It can sometimes last up to 2 weeks. However, this type of diarrhea is usually mild and resolves on its own. Chronic diarrhea lasts for at least 4 weeks. The symptoms might come and go, but it could be a sign of a serious condition.

Diarrhea can have many possible causes. The duration of diarrhea, along with any additional symptoms, depends on the cause. In adults, the most common cause of acute diarrhea is a norovirus infection.

Preparing for colonoscopy also causes diarrhea. Your doctor will prescribe a laxative solution for you to start taking the day before your colonoscopy.

The type of laxative also known as prep medication your doctor will prescribe is designed to cause diarrhea without draining your own fluids out of your body.

This helps prevent dehydration. To learn more about Healthwise, visit Healthwise. Healthwise, Healthwise for every health decision, and the Healthwise logo are trademarks of Healthwise, Incorporated. It looks like your browser does not have JavaScript enabled. Please turn on JavaScript and try again. Main Content Related to Conditions Digestion. Important Phone Numbers.

Top of the page. Topic Overview Diarrhea is described as an increase in the frequency of bowel movements or a decrease in the consistency of stools that causes the discharge of watery, loose stools. Severe diarrhea increases your risk of dehydration by causing your body to lose large amounts of fluid quickly.

Be sure to increase your intake of fluids, such as water or a rehydration drink , and to watch for symptoms of dehydration. Persistent diarrhea can have many causes, including dietary changes, stress, irritable bowel syndrome , and certain medicines. Occasionally, persistent diarrhea can be a symptom of a more serious condition, such as a chronic infection, inflammatory bowel disease , a malabsorption syndrome , or colorectal cancer. Blahd Jr. Author: Healthwise Staff.

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