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From Nemours' KidsHealth
- A to Z: Irritable Bowel Syndrome
- First Aid: Diarrhea
- Digestive System
- Nut and Peanut Allergy
- Celiac Disease Special Needs Factsheet
- Celiac Disease
- Inflammatory Bowel Disease Special Needs Factsheet
- Inflammatory Bowel Disease
- Irritable Bowel Syndrome Special Needs Factsheet
- Lactose Intolerance
- Lactose Intolerance Special Needs Factsheet
- A to Z: Gastroenteritis
- A to Z: Gastroesophageal Reflux Disease (GERD)
- A to Z: Colitis
- First Aid: Constipation
- Necrotizing Enterocolitis
- Milk Allergy in Infants
- Egg Allergy
- Soiling (Encopresis)
- X-Ray Exam: Abdomen
- Ultrasound: Abdomen
- X-Ray Exam: Upper Gastrointestinal Tract (Upper GI)
- Wheat Allergy
- Irritable Bowel Syndrome (IBS)
- A to Z Symptoms: Vomiting
- A to Z: Constipation
- A to Z Symptoms: Diarrhea
- Food Allergies
- Gastrostomy Tube (G-Tube)
- Gastroesophageal Reflux
- A to Z: Intussusception
- A to Z: Intestinal Malabsorption
- Soy Allergy
- First Aid: Stomachaches
- Shellfish Allergy
Trusted External Resources
- American Academy of Pediatrics
- American Association for the Study of Liver Diseases (AASLD)
- American Gastroenterological Association (AGA)
- American Liver Foundation
- American Partnership for Eosinophilic Disorders
- Crohn's and Colitis Foundation of America
- The Food Protein-Induced Enterocolitis Syndrome (FPIES) Foundation
- The International Gastrointestinal Eosinophil Researchers (TIGER)
- North American Society for Pediatric Gastroenterology, Hepatology and Nutrition (NASPGHAN)
A to Z Symptoms: Diarrhea
A to Z Symptom: Diarrhea
More to Know
Diarrhea is loose, watery, or more frequent stools (poop). Although it can be upsetting, diarrhea is rarely dangerous and usually goes away in a few days.
Diarrhea can be a symptom of many conditions, including common infections due to viruses (like viral gastroenteritis, or "stomach flu"), bacteria, or parasites. It's often accompanied by cramping belly pain — and, sometimes, nausea, vomiting, fever, loss of appetite, and weight loss.
Most cases of diarrhea go away in a few days with care at home, rest, and plenty of fluids. In some cases, particularly in infants, diarrhea can lead to dehydration that requires treatment with IV fluids and sometimes hospitalization. Diarrhea, especially if it lasts more than 2 weeks or keeps happening, also can be a symptom of an underlying medical problem that needs further evaluation.
Keep in Mind
The most common infectious causes of diarrhea are highly contagious and spread easily through dirty hands, contaminated food or water, and contact with dirty diapers or the toilet.
Washing hands well and often is the best way to help prevent spreading infection. Everyone in your family should wash their hands after using the bathroom and before eating or preparing food.
All A to Z dictionary entries are regularly reviewed by KidsHealth medical experts.
Date reviewed: September 23, 2016