Medline Plus

MedlinePlus is an online health information resource for patients and their families and friends. It is a service of the National Library of Medicine (NLM), the world's largest medical library, and a part of the National Institutes of Health (NIH).

Our mission is to present high-quality, relevant health and wellness information that is trusted and easy to understand, in both English and Spanish. We make reliable health information available anytime, anywhere, for free. There is no advertising on this website, and MedlinePlus does not endorse any companies or products.

MedlinePlus at a Glance

• Offers information on health topics, human genetics, medical tests, medications, dietary supplements, and healthy recipes.
• Sourced from about 500 selected organizations.
• Offers almost 22,000 links to authoritative health information in English and more than 13,000 links to information in Spanish.
• In 2021, 418 million users viewed MedlinePlus more than 888 million times.