Content last modified Aug 2023
The Manual is organized hierarchically by
Specialty areas are listed under the medical topics which you can find on a tab on the navigation bar at the top of every page and on the accordion menu at the upper left corner from anywhere on a page. Medical topics and chapters can be expanded to view their subordinate content.
The navigation bar allows you to access specific types of content
You can filter search results to select only certain types of content, such as medical topics, tables, figures, images, videos, calculators, or 3D Models
To find subtopics (eg, "Diagnosis") on a content page, there are several methods
To find related topics to a content page (ie, topics in the same chapter), use similar methods
The Manual contains symptoms, diagnosis, and treatment in all fields of medicine.
The Consumer Version also contains Quick Facts, which are shorter, easier to read versions of selected consumer topics. You can toggle to Quick Facts from a topic page or select them from a search result.
You also can toggle between Professional and Consumer versions using buttons on each page.
The Manuals are the product of collaboration between hundreds of medical experts worldwide, an independent editorial board of peer reviewers, and our editorial staff of physicians and professional medical writers.
The Manual is continually updated with new content and new features. We publish new content once per month.
For over 100 years, The Manuals have had complete editorial independence to present the best current thinking regarding medical diagnosis and treatment, and do not in any way promote or publicize our pharmaceutical products. To ensure absence of commercial or corporate bias, authors and peer reviewers cannot be employees of Merck & Co., Inc., Rahway, NJ, USA, nor can they serve as speakers for our pharmaceutical products, or in any other way represent the company. Although the editorial staff is employed by Merck & Co., Inc., Rahway, NJ, USA, there is no control, review, or even input into the content of The Manuals allowed from any other part of our company, including research and development, sales and marketing, public relations, legal, and corporate management.
We believe that health information is a universal right and that every person is entitled to accurate and accessible medical information. We have a responsibility to protect, preserve and share the best current medical information to enable more informed decisions, enhance relationships between patients and professionals, and improve health care outcomes around the world.