Free USMLE Step 1 Question Bank — Adaptive Practice
Master the basic sciences before you hit the wards. Hundreds of practice questions across 10 subject areas, with detailed explanations and real-time progress tracking.
Start Practicing — FreeAll Step 1 subjects covered
Biochemistry
the mechanistic core of Step 1.…
Physiology
you must understand normal function to recognize abnormal.…
Pathology
the single highest-yield Step 1 subject.…
Pharmacology
how drugs work, and why they fail.…
Microbiology
identification, pathogenesis, and clinical presentations.…
Anatomy
the structural foundation tested with clinical correlations.…
Behavioral Sciences
the USMLE's non-clinical science component.…
Genetics
from Mendelian to population genetics.…
Biostatistics
the analytical tools of medical research.…
Histology
Tissue identification, organ microstructure, and pathologic histologic changes.…
How adaptive practice works
Targets weak areas
Questions are selected from the subjects where your accuracy is lowest, directing your study time where it matters most.
No repeats
Your 20 most recent questions are excluded each session, keeping practice fresh.
Full explanations
Every answer choice — right and wrong — has its own explanation so you learn from every question.
Per-category stats
Your dashboard shows exactly where you stand across all 10 Step 1 subjects.
Start your USMLE Step 1 prep today
Built by med students who took Step 1. Free to use, no credit card required.
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