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About MedlinePlus

MedlinePlus will direct you to information to help answer health questions. MedlinePlus brings together authoritative information from NLM, the National Institutes of Health (NIH), and other government agencies and health-related organizations. Preformulated MEDLINE searches are included in MedlinePlus and give easy access to medical journal articles. MedlinePlus also has extensive information about drugs, an illustrated medical encyclopedia, interactive patient tutorials, and latest health news.

A Message from the Director

Color photo of Dr. Donald A.B. Lindberg and grandson at computer

Dr. Donald A.B. Lindberg, Director, National Library of Medicine

View Dr. Lindberg's welcome (Quicktime video 1.2 MB, 51 seconds)

Welcome to MedlinePlus, a goldmine of good health information from the world's largest medical library, the National Library of Medicine. Health professionals and consumers alike can depend on it for information that is authoritative and up to date. MedlinePlus has extensive information from the National Institutes of Health and other trusted sources on over 750 diseases and conditions. There are also lists of hospitals and physicians, a medical encyclopedia and a medical dictionary, health information in Spanish, extensive information on prescription and nonprescription drugs, health information from the media, and links to thousands of clinical trials. MedlinePlus is updated daily and can be bookmarked at the URL: There is no advertising on this site, nor does MedlinePlus endorse any company or product.

I hope you enjoy your visit and find the information you need. I invite you to use the link at the top of every page to send us your comments.

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