General practice·General practice
Dehydration signs
Informed by recognized medical guidance
Overview
Dehydration happens when your body loses more fluids than you take in. This means your body doesn’t have enough water and other fluids to work properly.
Key facts
- Mild dehydration is common and easily treated by drinking fluids.
- Severe dehydration can be dangerous and needs urgent medical help.
- Drinking enough water is key to staying hydrated.
Yes, dehydration is very common, especially during hot weather, illness, or after exercise.
Anyone can get dehydrated, but it is more common in babies, young children, older adults, and people with long-term health conditions.