Since 2001, nearly all medical students in the United States have trusted UWorld to prepare for their licensing exams. Being at the forefront of medical education gives us an obligation to provide students with only the best practice questions and explanations. Our goal is not only to prepare you for the USMLE, but to help you become a better clinician.

2,400+ challenging Step 1 questions

Real-life clinical scenarios test high-yield basic science concepts
Content created by practicing physicians with extensive experience
Continuous updates to maintain high standards of excellence

In-depth explanations

Conceptual focus on important preclinical and clinical topics
Detailed explanations for incorrect options
Vivid illustrations to help master the content

Performance and improvement tracking

Exam-like software interface
Highlighting of relative strengths and weaknesses
Performance gauging with peer-to-peer comparison

Innovative Answer Explanations

UWorld focuses on explanations that provide a detailed understanding of important underlying concepts and minimize the need for memorization. The explanations teach you the critical thinking skills necessary to succeed on the USMLE Step 1 examination.

Why Choose Us?

YOU’LL BE CHALLENGED

Our questions are at or above the level of difficulty of the USMLE, so you will be prepared for the actual exam.

WE WON’T LEAVE YOU CONFUSED

We provide content-rich explanations for both correct and incorrect answer choices to give you a deep understanding of entire concepts.

DESIGNED WITH YOU IN MIND

Simple, user-friendly interface allows you to customize and create tests of your choice.

WE ARE HERE FOR YOU

Fast, friendly, and reliable customer support is available to meet your needs.