WikiDoc is an online medical information resource organized as a searchable wiki and collection of topic-based textbooks. Its main page helps visitors find information by searching for a topic or browsing a broad range of medical specialties and subjects, including cardiology, infectious diseases, pediatrics, oncology, psychiatry, emergency medicine, and basic sciences. The site also includes areas dedicated to rare diseases, COVID-19, and other focused topics.

In addition to its medical reference content, WikiDoc provides resources and pathways for different audiences. Visitors can explore information for patients, access board review materials, learn about the organization, or find ways to get involved. The site features recent edits and news, reflecting its role as an evolving knowledge resource with contributions from named authors and WikiDoc users.

WikiDoc’s content is available under a Creative Commons Attribution-ShareAlike license unless otherwise noted. Overall, the site brings medical topics together in a browsable, searchable format for readers seeking educational information across a wide range of health and clinical fields.