Medically reviewed by Anju Goel, MD Key Takeaways Diarrhea is often contagious, especially when it's caused by viruses, ...

Diarrhea claims the lives of 500,000 children each year in low- and middle-income countries. Now, Danish and Ethiopian researchers have linked chronic diarrhea to a specific pattern of gut bacteria, a ...

Diarrhea and other gastrointestinal symptoms are less common but possible if you have pneumonia, or are taking medications for this lung infection. Pneumonia is an infection that causes inflammation ...

A parent or caregiver needs to seek medical attention if the toddler’s diarrhea lasts more than 24 hours, is accompanied by a fever of 102°F (38°C) or higher, or there are signs of dehydration. While ...

Diarrhea that develops after you eat lunch meat may be related to one of several health issues, such as a food allergy or intolerance, immune dysfunction, or even food poisoning. Lunch meats are often ...