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Dehydration occurs when your body loses more fluid than you take in.
Symptoms of dehydration
Depending on how much of your body weight lost through fluids, dehydration can be described as mild, moderate or severe.
Causes of dehydration
Dehydration is caused by not drinking enough fluid or by losing more fluid than you take in. Fluid is lost through sweat, tears, vomiting, urine or diarrhoea.
Treating dehydration
The best way to treat dehydration is to rehydrate the body by drinking plenty of fluids, such as water, semi-skimmed milk, diluted squash or diluted fruit juice.
Preventing dehydration
Drink plenty of fluids to avoid becoming dehydrated.
See what the doctor sees with Map of Medicine
See what your doctor sees, find out what is happening with your Dehydration treatment and what the next steps might be.