A medical writer, working with doctors, scientists, and other subject matter experts, creates documents that effectively and clearly describe research results, product use, and other medical information. The medical writer also ensures that their documents comply with regulatory, journal, or other guidelines in terms of content, format, and structure.

Regulatory medical writing means creating the documentation that regulatory agencies require in the approval process for studies, trials or publications.

Educational medical writing means writing documents or scientific publications for general audiences, and for specific audiences such as health care professionals.