Diarrhea is the sudden increase in the frequency and looseness of stools. Mild diarrhea is the passage of a few loose or mushy stools. Severe diarrhea is the passage of many watery stools. The best indicator of the severity of the diarrhea is its frequency.

The main complication of diarrhea is dehydration from excessive loss of body fluids. Symptoms of dehydration are a dry mouth, the absence of tears, infrequent urination (for example, none in 12 hours), and a darker, concentrated urine. The main goal of diarrhea treatment is to prevent dehydration.
What causes diarrhea?

Diarrhea is usually caused by a viral infection of the lining of the intestines (gastroenteritis). Sometimes it is caused by bacteria or parasites. Bacterial diarrhea usually causes blood or lots of mucus in the stools. A food allergy or drinking too much fruit juice may cause diarrhea. If you have just one or two loose stools, the cause was probably something unusual you ate.
How long will it last?

Diarrhea from a viral or bacterial infection usually lasts from several days to 2 weeks, regardless of the type of treatment. The main goal of treatment is to prevent dehydration by making sure you drink enough fluids to replace the fluids lost in the diarrhea. Don’t expect a quick return to solid stools.
How can I take care of myself?

Eat a regular diet with a few simple changes:
Eat more foods containing starch since these are easily digested during diarrhea. Examples are cereals, breads, crackers, rice, mashed potatoes, and pasta.
Drink more water or half-strength Gatorade
Avoid fruit juices because they make diarrhea worse.
Milk and milk products are fine well-balanced fluids for diarrhea.
Avoid beans or any other foods that cause loose stools.

You can go back to your normal diet 1 day after the diarrhea is gone, which is usually in 3 or 4 days.


Probiotics contain healthy bacteria (lactobacilli ) that can replace unhealthy bacteria in the GI tract.

Yogurt is the easiest source of probiotics. Have yogurt twice daily while you have diarrhea. Today almost all yogurts are “active culture”, which means that they contain live and active bacteria.

Probiotic supplements in granules, tablets, or capsules are also available in health food stores.

The most dangerous myth is that the intestine should be “put to rest”. Avoiding fluids can cause dehydration. There is no effective, safe drug for diarrhea. Extra fluids and diet therapy work best. Avoid fruit juices (especially apple and grape) because they make diarrhea worse.

Diarrhea can be very contagious. Always wash your hands after using the toilet. This is crucial for keeping everyone in the family from getting diarrhea.

If you vomit more than twice, treatment of the vomiting should take priority over the treatment of diarrhea until you have gone 8 hours without vomiting. Follow your doctor’s recommended treatment for vomiting.
When should I call my healthcare provider?

You have signs of dehydration (no urine in more than 12 hours, very dry mouth, no tears).
Any blood appears in the diarrhea.
Your diarrhea is severe (more than 8 stools in the last 8 hours).
The diarrhea is watery AND you have also vomited repeatedly.

Call during office hours if:
Mucus or pus appears in your stools.
You have a fever for more than 3 days.
Mild diarrhea lasts more than 2 weeks.
You have other concerns or questions.

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