MedlinePlus

MedlinePlus is a free online health information resource produced by the United States National Library of Medicine (NLM), a component of the National Institutes of Health (NIH). Launched in 1998, it provides consumer-oriented information to help people understand diseases, conditions, medicines, and wellness topics, and to support discussions with health care providers.

The site offers extensive, clearly written content organized into health topic pages, drug information, a medical encyclopedia, a medical dictionary, tutorials, and videos. It also covers tests and procedures and includes topics on genetics (MedlinePlus Genetics). Content is available in English and Spanish (MedlinePlus en español). Articles are authored or reviewed by physicians, nurses, and health librarians and are updated regularly from reputable sources. The platform provides an A-Z topic index, print and email options, and accessibility features for diverse users.

MedlinePlus links to additional resources and consumer health information from government agencies and other trusted organizations, and connects users to scholarly literature through PubMed when appropriate. It is designed for patients, families, and caregivers who seek reliable, understandable health information, and it is not a substitute for professional medical advice, diagnosis, or treatment.

Access is free at medlineplus.gov on desktop and mobile devices.