Issue may have led to limited disclosure of patient information through Mayo Clinic app Appointments Find a Doctor Contact Us Patient & Visitor Guide Find Diseases & Conditions Find a disease by its first letter A B C D E F G H I J K L M N O P Q R S T U V W X Y Z # Check your symptoms to find a possible cause Try the Symptom Checker Featured topics Bone marrow transplant Brain aneurysm Brain tumor Breast cancer Colon cancer Congenital heart disease Glioma Heart arrhythmia Heart valve disease Living donor transplant Lung transplant Rectal cancer See More Topics A genetic testing experience that reveals health insights using your DNA Start discovering Help Mayo Clinic transform the future of health care Give now Mayo Clinic is the No. 1 hospital overall Learn more When it’s time to find answers, You Know Where to Go Learn more Why Choose Mayo Clinic? More experience Every year, more than a million people come to Mayo Clinic for care. Our highly specialized experts are deeply experienced in treating rare and complex conditions. The right answers Getting effective treatment depends on identifying the right problem. In a recent study, 88 percent of patients who came to Mayo Clinic for a second opinion received a new or refined diagnosis. Seamless care At Mayo Clinic, every aspect of your care is coordinated and teams of experts work together to provide exactly the care you need. What might take months elsewhere can often be done in days here. Unparalleled expertise Mayo Clinic experts are some of the best in the world. In the U.S. News & World Report rankings of top hospitals, Mayo Clinic is consistently ranked among the top hospitals in the nation. Learn more Mayo Clinic Locations Mayo Clinic's campus in Arizona Mayo Clinic's campus in Florida Mayo Clinic's campus in Minnesota Mayo Clinic Health System Mayo Clinic