Medical disclaimer

USMLE Explained is for education only.

Not medical advice

The content on this website and in our videos is for educational purposes only, to help students prepare for medical licensing exams. It is not medical advice, and it is not a substitute for professional diagnosis or treatment. Do not use it to make decisions about your own health or anyone else’s. If you have a medical question or concern, speak to a qualified healthcare professional. In an emergency, call your local emergency number.

Accuracy

We check every fact against official sources and correct errors when we find them, but medicine changes and mistakes can happen. We do not guarantee that the content is complete, current or free of errors. If you spot a mistake, please see Corrections.

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USMLE Explained is an independent educational project. It is not affiliated with or endorsed by the United States Medical Licensing Examination (USMLE), the National Board of Medical Examiners (NBME) or the Federation of State Medical Boards (FSMB).

USMLE is a registered trademark of the Federation of State Medical Boards (FSMB) and the National Board of Medical Examiners (NBME). Practice questions on this site are written for study and are not actual exam questions.