You can search MEDLINEplus for information to help you answer general health questions. MEDLINE Plus offers health information from the world's largest medical library, the U.S. National Library of Medicine (NLM), the National Institutes of Health (NIH) and other trusted sources on over 600 diseases and conditions. There are also links to a medical encyclopedia, medical dictionary, and a database of full-text drug information. The information in MEDLINEplus does not replace the health care given by your health care provider. If you have special health care needs, you should talk to your health care provider. MEDLINEplus is a service of the U.S. NATIONAL LIBRARY OF MEDICINE and the NATIONAL INSTITUTES OF HEALTH. Close the MEDLINEplus page to get back to this site.