About USMLE Step 2


USMLE Step 2 CK (Clinical Knowledge)

Medical students can take the USMLE Step 2 – which is second part of the United States Medical Licensure Examination – during the 4th year of medical school.
This test assesses clinical knowledge through a multiple-choice examination. Unlike the USMLE Step 1, the focus here is more on clinical application of medical knowledge. The ability to apply medical knowledge is assessed, as well as skills and how well the student can understand clinical science essentials in order to actually take care of patients under supervision.


 Content of step 2 CK

  • Immune System
  • Blood & Lymphoreticular Systems
  • Behavioral Health
  • Nervous System & Special Senses
  • Skin & Subcutaneous Tissue
  • Musculoskeletal System
  • Cardiovascular System
  • Respiratory System
  • Gastrointestinal System
  • Renal & Urinary Systems
  • Pregnancy, Childbirth, & the Puerperium
  • Female Reproductive System & Breast
  • Male Reproductive System
  • Endocrine System
  • Multisystem Processes & Disorders


How long is the test

USMLE Step 2 is a nine hour long multiple-choice test. There is a minimum of 45 minutes of break time and a 15 minute optional tutorial. It is possible to increase the time of breaks by finishing a block of test items or the optional tutorial earlier.


The structure of the test

This test is divided into eight blocks, where you have 60-minutes for each block.

The number of items in a block will vary, but will not exceed 40 items. The total number of items on the exam will not exceed 318 items. There is always 60 minutes available for each block.


How to register for the USMLE Step 2

Medical school graduates and U.S or Canadian MD students can register for the exam here.
If your medical school is outside of the US or Canda, you can register here.


Where to do the Step 1 test

The USMLE Step 2 CK exam can be taken at Prometric test centers worldwide.
Locate a test center on the Prometric website  and check availability for Step 1 and Step 2 CK.


USMLE Step 2 CS (Clinical Skills)

The USMLE Step 2  is divided by two components: Clinical Knowledge (CK) and Clinical Skills (CS).

Step 2 CS is build to test medical students and graduates on their ability to collect and understand information from patients, using standardized patients to perform physical examinations, and then forward and communicate their findings to patients and colleagues as well as prepare the patient for next steps.
Step 2 CS is an exam for medical students/graduates who wish to become licensed physicians in the US.


This exam can be taken in the U.S. at five Clinical Skills Evaluation Centers (CSEC), located in:

  • Atlanta, Georgia
  • Chicago, Illinois
  • Houston, Texas
  • Los Angeles, California
  • Philadelphia, Pennsylvania