Explore comprehensive guides on hundreds of common and rare diseases and conditions from the experts at Mayo Clinic.

Mayo Clinic has more No. 1 rankings than any other hospital in the nation according to U.S. News & World Report. Learn more about our top-ranked specialties.

Learn about services at each Mayo Clinic location, including appointments, billing and insurance; travel options; concierge services; lodging and parking. View campus maps and video guides. Find out more

Alphabetical guide of diseases and conditions from Mayo Clinic experts. Click on disease or condition by first letter for more information.

If you need support for the patient portal or Mayo Clinic app, call 1-877-858-0398 weekdays from 7 a.m.–7 p.m. CDT. Stay Connected Contact Us

Mayo Clinic (/ ˈ m eɪ j oʊ /) is a private American academic medical center focused on integrated healthcare, education, and research. [4] It maintains three major campuses in Rochester, Minnesota; Jacksonville, Florida; and Phoenix/Scottsdale, Arizona.

Explore education and research opportunities and resources at Mayo Clinic, where academic leaders, faculty members, and scientists work together to improve patient care.

We understand what it means to bear the name of the nation’s No. 1 hospital, which is why we deliver patient care that meets Mayo Clinic's standards for safety and quality.

Join Mayo Clinic Connect. Connect with thousands of patients and caregivers for support and answers. Hosted and moderated by Mayo Clinic. Safe and secure.

With locations across the Midwest, you have the ability to receive Mayo Clinic care close to home.