Symptoms of Giardia infection (giardiasis)

Learn about the symptoms of Giardia infection (giardiasis) and what to do if you become ill.

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Symptoms of Giardia infection

The most common symptoms of Giardia infection include:

These symptoms usually appear 1 to 3 weeks after infection and usually last 2 to 6 weeks.

Some people may not show any symptoms of illness.

What to do if you become ill

Contact your health care provider if you have any of these symptoms and think you have Giardia infection. Mention if you have been exposed to:

Your health care provider can:

If you have diarrhea, drink plenty of water or fluids to prevent dehydration. Children and people with weakened immune systems may experience more severe symptoms.

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