Skip to content
My WebMD Sign In, Sign Up

Giardiasis Directory

Giardiasis (pronounced "jee-ar-DYE-uh-sus"), or giardia, is an infection of the intestines caused by the parasite Giardia lamblia. You may become infected with giardia if you eat food or drink water that is tainted with human or animal waste. You can also get giardia by coming into close contact with an infected person. The illness is most often a problem in developing countries where tap water is not safe; but you can get giardiasis in developed countries, too. In the U.S. and Canada, you can get giardia by drinking untreated water from wells, streams, rivers, and lakes. This is true even in mountain lakes and streams, where the water may seem pure. Follow the links below to find WebMD's comprehensive coverage about how giardiasis is contracted, what it looks like, how to treat it, and much more.

Medical Reference

Features

Thumbnail: What Causes Diarrhea?

The average adult has diarrhea four times a year, often caused by food, medication, stress, or, sometimes, an underlying medical problem.

Read Full Article

Video

Slideshows & Images

News Archive

Today on WebMD

myth and facts about constipation
Slideshow
what is ibs
Article
 
toilet paper
Quiz
Fastfood
Article
 

top foods for probiotics
Slideshow
couple eating at cafe
Article
 
sick child
Slideshow
Woman blowing bubble gum
Slideshow
 

Woman with crohns in pain
Slideshow
Woman with stomach pain
Slideshow
 
diet for diverticulitis
Video
what causes diarrhea
Video