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Diarrhea isn't usually serious. Most people get better on their own without any problems.

The main risk is losing too much water (getting dehyd rated). So it's important to drink plenty of fluids. You're more likely to get dehydrated if you're elderly.¹

Your doctor or pharmacist may recommend you drink rehydration fluids. These help replace fluid and mineral salts that your body has lost.

If you have vomiting as well as diarrhea, you're more likely to become dehydrated. So it's even more important that you drink plenty of fluids. Drinking often, in small sips, may help.

Some people who get very dehydrated may need to go to the hospital.

If your diarrhea doesn't clear up in a few days, you should see a doctor. You may need antibiotics, or you could need tests to find out what is causing your diarrhea.

If you are too sick to eat or drink, see your doctor as soon as you can.^{2 3}

You should also see a doctor if:²

• You have a fever
• There is blood in your stools
• You feel very sick
• You've been traveling abroad
• You've just come out of the hospital
• You have another medical condition
• You work as a caregiver
• You work in a job where you handle food.

You can help prevent diarrhea by washing your hands after using the bathroom, before preparing food and before eating.

This information is for educational use only, and is not a substitute for prompt professional medical advice. Readers should always consult a physician or other professional for advice and treatment. ©BMJ Publishing Group Limited 2008. All rights reserved.