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Symptoms of Giardia

Common Signs and Symptoms of Giardia

Symptoms of Giardia may either begin gradually or develop without warning. They generally occur one to two weeks after initial exposure to the Giardia parasite.
 
Although symptoms vary from person to person, common ones include:
 
  • Diarrhea
  • Flatulence or gas
  • Abdominal (stomach) pain
  • Upset stomach or nausea.
     

Chronic Giardia Symptoms

The symptoms of chronic Giardia, a more serious form of the intestinal illness, include:
 
  • Increased gas (flatus)
  • Loose stools
  • Burping
  • Dehydration.
     
(Click Giardia Symptoms for a more detailed list of both common and chronic symptoms of Giardia, as well as an explanation of how long symptoms are expected to last.)
 
Written by/reviewed by: Arthur Schoenstadt, MD
Last reviewed by: Arthur Schoenstadt, MD