Severe dehydration in older children and adults
Severe dehydration means:
- Your mouth and eyes may be extremely dry.
- You may pass little or no urine for 12 or more hours.
- You may not feel alert or be able to think clearly.
- You may be too weak or dizzy to stand.
- You may pass out.
Severe dehydration is a medical emergency and requires emergency treatment. Call 911 or other emergency services immediately.
By the time a person becomes severely dehydrated, there is no longer enough fluid in the body to carry enough blood to vital organs. Shock, which is a life-threatening condition, can develop quickly.
Current as of: June 6, 2022