Medical Specialty >> Gastroenterology

Doctors Lounge - Gastroenterology Answers

Back to Gastroenterology Answers List

If you think you may have a medical emergency, call your doctor or 911 immediately. Doctors Lounge ( does not recommend or endorse any specific tests, physicians, products, procedures, opinions, or other information that may be mentioned on the Site.

DISCLAIMER: The information provided on is designed to support, not replace, the relationship that exists between a patient/site visitor and his/her physician. Please read our 'Terms and Conditions of Use' carefully before using this site.

Date of last update: 10/15/2017.

Forum Name: Gastroenterology Topics

Question: Can Giardia be detected with a colonoscopy?

 i12tup - Sun Apr 05, 2009 6:06 pm

My Vet. found Giardia in our dog. He said I should tell my doctor. My wife is having a colonoscopy tomorrow. Will it find Giardia if it is present?
 John Kenyon, CNA - Mon Apr 13, 2009 11:54 pm

User avatar Hello--

While giardia may show up during the course of colonoscopy, it probably would not, at least unless it had had time to establish a colony (which would be in the small intestine), so the chances of finding it, even if present, is pretty slim this early on. It's worth mentioning to the doctor performing the scope anyway, just in case, and at least this way a sample could be collected at conclusion of the procedure.

The best way to deal with any possible cross-contamination is to treat the problem symptomatically if symptoms of giardiasis should show up in your wife. This seems fairly unlikely but isn't out of the question, so just be sure she recalls this could be the case in the event she develops lower GI symptoms.

Hope this answers your question. Good luck to you both.

| Check a doctor's response to similar questions

Are you a Doctor, Pharmacist, PA or a Nurse?

Join the Doctors Lounge online medical community

  • Editorial activities: Publish, peer review, edit online articles.

  • Ask a Doctor Teams: Respond to patient questions and discuss challenging presentations with other members.

Doctors Lounge Membership Application

Tools & Services: Follow DoctorsLounge on Twitter Follow us on Twitter | RSS News | Newsletter | Contact us