Diagnosis is usually based on your symptoms. But norovirus can be identified by testing a stool sample. If you are immunocompromised or have other health problems, your doctor may recommend a stool test to confirm the presence of norovirus.
Mayo Clinic is a not-for-profit organization and proceeds from Web advertising help support our mission. Mayo Clinic does not endorse any of the third party products and services advertised.
A single copy of these materials may be reprinted for noncommercial personal use only. "Mayo," "Mayo Clinic," "MayoClinic.org," "Mayo Clinic Healthy Living," and the triple-shield Mayo Clinic logo are trademarks of Mayo Foundation for Medical Education and Research.