This informational guide, part of POPSUGAR's Condition Center, lays out the realities of this health concern: what it is, what it can look like, and strategies that medical experts say are proven to ...

Osmotic diarrhea is when undigested material reduces how much water and electrolytes the bowels can absorb. It can occur when a person’s body has difficulty digesting certain foods, such as lactose.

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 ...