Mayo Clinic (/ ˈmeɪoʊ / MAY-oh) 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. As part of Mayo Clinic, our clinics, hospitals and healthcare facilities serve communities in Iowa, Wisconsin and Minnesota. Mayo Clinic is a global medical institution providing healthcare, research, and education. The leading source for trustworthy and timely health and medical news and information. Providing credible health information, supportive community, and educational services by blending award. The right answers the first time Effective treatment depends on getting the right diagnosis. Our experts diagnose and treat the toughest medical challenges. The world's best hospital Mayo Clinic is the No. 1 hospital in the world according to Newsweek. Learn more about our top-ranked specialties. Mayo Clinic, nonprofit surgical and medical clinic with facilities located in Rochester, Minnesota; Jacksonville, Florida; and Scottsdale, Arizona. The Mayo Clinic was created through the joint efforts of William W. Mayo and his sons, William J. and Charles H. Mayo, who began practicing together at Mayo Clinic Health Information Library contains resources for diseases & conditions, tests & procedures, and more. Find causes & solutions for your symptoms. Stay current on new tests published to the Test Catalog. Mayo Clinic’s trusted health information is now available on-demand. Symptoms, causes, risk factors, treatments — all at your fingertips. Browse A–Z healthcare topics to get health and wellness information, from aging to wound care.