Setting your location helps us to show you nearby providers and locations based on your healthcare needs.
Your Location is set to Change My Location
Cone Health wants to help you get well and stay well. This section provides tools and information to achieve good health and maintain your well-being.
Learn what community resources are available to help you get well and stay well.
View health and wellness news you can use from Cone Health providers on
View Advanced Search OptionsView All Doctors
View All Locations
COVID-19 Info: Please help us slow the spread of coronavirus - Wear a Mask, Wash Your Hands & Wait 6 Feet Apart! Visitor Policies and Precautions | COVID-19 Testing| Vaccine information | Commitment to Safety | Current Numbers
Giardiasis (also called giardia) is an illness caused by infection with the parasite Giardia lamblia, also known as Giardia intestinalis. Giardiasis is usually caused by drinking water that is contaminated with the parasite. In the United States, G. lamblia is most often found in untreated streams, rivers, and lakes.
Symptoms of giardiasis include diarrhea, a lot of gas (flatulence), abdominal cramps, and nausea. In some people, giardiasis does not cause any symptoms. In other people, the symptoms may keep coming back (recurring).
Infection with the parasite can be prevented by hand-washing and by treating water taken from rivers, lakes, or streams before drinking it or using it to cook, wash dishes, or brush teeth.
Symptoms of giardiasis may go away on their own. But medicine, usually metronidazole, can relieve the discomfort and prevent the spread of the illness.
Current as of: February 11, 2020
Author: Healthwise Staff
Medical Review:E. Gregory Thompson MD - Internal Medicine & Adam Husney MD - Family Medicine & W. David Colby IV MSc, MD, FRCPC - Infectious Disease
To learn more about Healthwise, visit Healthwise.org.
© 1995-2020 Healthwise, Incorporated. Healthwise, Healthwise for every health decision, and the Healthwise logo are trademarks of Healthwise, Incorporated.