USMLE Vault · Med School
How to Study for USMLE in Second Year
Microbiology, then pathology, then pharmacology — in that order, system-wise. Do this year properly and your dedicated phase becomes revision instead of learning.
Second year is the most important year you will ever have for Step 1 — and almost nobody uses it. Pharmacology, pathology and microbiology are the three subjects your university throws at you this year, and they are also three of the largest blocks on the exam. Study them once, properly, and your dedicated phase later becomes revision instead of learning.
Three things, in this order: microbiology, then pathology, then pharmacology. The order is not negotiable — pharmacology makes no sense before pathology.
1 · Microbiology — Sketchy, first
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Sketchy Micro is the best resource on the internet for this, and it is not close. Everyone says that. Nobody tells you why it matters this much: I was still using Sketchy Micro knowledge in residency in 2026, on infectious disease rotations. Not for an exam — for patients. You learn these once and they stay for a decade.
The method matters as much as the resource: roughly 20 organisms a day, video then PDF, in a fixed order — and the same night, do that day's MCQs. Watch then test, same day. That is why it sticks and why re-watching does not.
The full method, organism by organism: Sketchy Micro in 6 Days — all ~85 bugs, in the exact order, with what to read from First Aid instead and what to skip entirely. Micro MCQs live at
usmlevault.com.
2 · Pathology — the system-wise loop
You cannot do pharmacology without pathology, so it comes second. And pathology is always done system-wise, never as one subject. Say you open gastrointestinal. Four things on the desk:
1
Pathoma — the GI lectures, start to finish. Understand them. Do not try to remember anything yet. Make your notes from these lectures into First Aid itself, never into a separate notebook.
2
Robbins, your standard textbook — but read it last, not first. See below.
3
First Aid, open to that system's pathology.
4
The First Aid Guide on usmlevault.com — which teaches you every page as if you were five years old, with a free video attached to each page and a question on each important topic.
The order to run them in
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Pathoma first. Watch all the GI pathology lectures, annotating First Aid as you go. Understanding only — no memorising.
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Lost? Half a day on that system's physiology. If the pathology is not landing, the gap is almost always underneath it. Open that system's physiology in the First Aid Guide as a refresher, then come straight back.
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Then First Aid + the Guide, topic by topic. Every topic explained in explicit detail, with its own ELI5, plus the confusions students reliably have on that topic called out before you fall into them.
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Then Robbins. Last, deliberately. By now you know which parts of that chapter matter, so the textbook reading is targeted rather than endless — and your university exam is covered.
Time per system: roughly three to five days. Run that across the systems and pathology and microbiology are both handled inside your first three months of second year.
3 · Pharmacology — after pathology, never before
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Start with the video on how to do pharmacology in the University section of
usmlevault.com, then open the
High-Yield Pharmacology PDF — free, in the same section. That PDF is the whole trick: it tells you which drugs are high-yield
and which single resource teaches each one best. Pharmacology is not hard, it is disorganised, and this is what organises it.
The loop, per system
Take renal rather than GI to start — it is the cleanest.
1
Check the PDF for where renal pharm comes from. It will tell you: Sketchy. So you open Sketchy Pharmacology for renal — not Sketchy and Osmosis and a third opinion. The map already decided.
2
Watch it. Sketchy and Osmosis are both excellent here; use whichever the PDF names for that drug class. Watch each video twice — one pass gets recognition, the second gets recall.
3
Then First Aid — renal, pharmacology section — with the First Aid Guide. Complete the pharmacology from there too. Now Sketchy, First Aid and your university textbook are one integrated pass instead of three separate ones.
Time per system: about five to six days, going system by system.
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And one video worth its own line: antimicrobials. All of antimicrobials, in 90 minutes. A topic that feels endless, made finite — and free.
Watch it here → The one thing that ruins second year: treating college and USMLE as two syllabuses. They are not. Pathoma, Sketchy, First Aid and Robbins on the same system in the same week is your university preparation — done in the order that also builds Step 1.
Everything referenced here.
→
Year 1 if you are earlier than this ·
Year 3 for the exam itself.
Pathology and pharmacology, decoded.
Every First Aid page taught to you — ELI5, videos, MCQs. Renal is free.
Open the First Aid Guide →