MedlinePlus is an online health information resource for patients and their families and friends.
General Information about MedlinePlus
Description & history
Using MedlinePlus
Policies, training, & help
Information for Developers
Web service, data files, & linking
MedlinePlus is a service of the National Library of Medicine (NLM), the world's largest medical library, which is part of the National Institutes of Health (NIH).
Our mission is to present high-quality, relevant health and wellness information that is trusted, easy to understand, and free of advertising, in both English and Spanish. Anywhere, anytime, on any device—for free.
