Anki is a spaced-repetition flashcard app that has become a staple of medical school studying. Used well, it moves high-yield facts into long-term memory with little wasted time. This guide covers how to set it up, which deck to use, and how to keep reviews sustainable.
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Evidence-based · For exam prep, not medical advice
update Updated October 2026
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Built by surgery and anesthesiology residents·Written for USMLE Step 1
bolt The 60-second version
check_circleAnki schedules each card for review right before you are likely to forget it.
check_circleThe community-maintained AnKing deck is the standard premade deck for Step 1.
check_circleDo your reviews every single day — consistency matters more than volume.
check_circleUnsuspend cards as you cover each topic rather than activating the whole deck.
check_circleCap new cards so the daily review load stays manageable over months.
What Anki Is and Why It Works
Anki is a digital flashcard program built around spaced repetition, which schedules each card for review at expanding intervals timed to when you are about to forget it. Combined with active recall — retrieving the answer from memory rather than rereading it — this is one of the most efficient ways to retain the enormous volume of facts in medicine. The payoff comes from daily use over time, not cramming.
Choosing a Deck
Most students use a well-made premade deck rather than building everything from scratch. For Step 1, the AnKing deck is the community standard because it is comprehensive, tagged by resource and system, and actively maintained. You can also make your own cards for material a deck misses. Whatever you use, keep cards atomic — one fact per card — so each review is quick and unambiguous.
A Sustainable Daily Workflow
Treat reviews as non-negotiable and do them every day, because skipped days pile up fast under spaced repetition. Unsuspend cards for a topic only after you have learned it from a lecture, video, or Pathoma, so the cards reinforce rather than teach. Set a realistic new-card limit — often 20 to 40 per day early on — and let the review count settle into a steady daily load rather than spiking.
Common Mistakes
The biggest error is letting reviews accumulate until the backlog feels hopeless; lowering new cards temporarily is better than quitting. Others include adding too many new cards early and burning out, passively reading the front and back without truly recalling, and unsuspending the entire deck at once so cards appear for material you have not studied. Quality of recall beats sheer number of cards seen.
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Try 3 real questions
Straight from the Progress Note question bank, each with a cited explanation. No account needed.
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A 58-year-old man with a history of heavy alcohol use presents with acute-onset severe pain, erythema, and swelling of the first metatarsophalangeal joint. Arthrocentesis, image shown below, shows needle-shaped crystals that are strongly negatively birefringent under polarized light, with numerous intracellular crystals within neutrophils. Which of the following mechanisms most directly initiates the acute inflammatory response triggered by these crystals?
Gabriel Caponetti, CC BY-SA 3.0 <https://creativecommons.org/licenses/by-sa/3.0>, via Wikimedia Commons
Answer: A. Monosodium urate crystals that precipitate within a joint are phagocytosed by resident synovial macrophages, where they activate the NLRP3 inflammasome, leading to caspase-1-mediated cleavage of pro-interleukin-1 beta into its active form; the resulting interleukin-1 beta release drives the intense neutrophilic influx and acute inflammatory response characteristic of a gout flare. Calcium pyrophosphate deposition disease (pseudogout) involves a distinct crystal and a less well-defined receptor-mediated pathway, cholesterol embolization produces a granulomatous foreign-body reaction rather than acute crystal-induced inflammation, hydroxyapatite deposition causes a different calcific periarthritis syndrome, and immune complex-mediated arthritis reflects an antibody-driven process unrelated to crystal phagocytosis.
A 29-year-old woman presents with a slowly enlarging, painless anterior neck mass. She reports no symptoms of hypo- or hyperthyroidism. Ultrasound shows a well-circumscribed thyroid nodule. Histology reveals uniform follicular cells forming small follicles without papillary nuclear features or psammoma bodies. Which diagnosis is most likely?
Nephron, CC BY-SA 4.0 <https://creativecommons.org/licenses/by-sa/4.0>, via Wikimedia Commons
Answer: D. Follicular adenoma is a benign thyroid neoplasm that presents as a solitary, well-circumscribed nodule composed of uniform follicular cells forming microfollicles or normofollicles. It lacks capsular or vascular invasion, which distinguishes it from follicular carcinoma. Papillary thyroid carcinoma would show orphan Annie eye nuclei and psammoma bodies. Medullary carcinoma arises from parafollicular C cells and produces calcitonin. Hashimoto thyroiditis shows diffuse lymphocytic infiltration, and anaplastic carcinoma shows highly pleomorphic, undifferentiated malignant cells.
Source: Baloch, et al. (2022). Overview of the 2022 WHO classification of thyroid neoplasms. Endocrine Pathology.
What is the most likely diagnosis?
Paulo Henrique Orlandi Mourao, CC BY-SA 3.0 <https://creativecommons.org/licenses/by-sa/3.0>, via Wikimedia Commons
Answer: B. Sideroblastic anemia is defined by the presence of ringed sideroblasts with Prussian blue staining, reflecting erythroid precursors in which iron accumulates within mitochondria (rather than being properly incorporated into heme) due to impaired heme synthesis, most classically from defective activity or delivery of the enzyme ALA synthase in the first step of the pathway; the iron-laden mitochondria cluster around the nucleus, producing the characteristic ring pattern. Iron deficiency anemia (C) instead shows absent or markedly reduced stainable marrow iron, the opposite finding. Beta-thalassemia major (A) shows erythroid hyperplasia with ineffective erythropoiesis but not the specific ringed perinuclear iron distribution that defines sideroblastic anemia. Megaloblastic anemia (D) shows nuclear-cytoplasmic dyssynchrony and megaloblastoid erythroid precursors from impaired DNA synthesis, an unrelated mechanism. Autoimmune hemolytic anemia (E) is a peripheral destructive process with a compensatory hypercellular but otherwise architecturally normal marrow, not ringed sideroblasts.
Source: Bottomley, S. S., & Fleming, M. D. (2014). Sideroblastic anemia: Diagnosis and management. Hematology/Oncology Clinics of North America.
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How many Anki cards should I do per day in medical school?expand_more
A common starting point is 20 to 40 new cards per day, which settles into roughly 100 to 250 total reviews daily once the deck matures. The exact number depends on your schedule and retention, but the priority is a sustainable, consistent daily load rather than a large burst you cannot maintain.
Which Anki deck is best for Step 1?expand_more
The AnKing deck is the community standard for USMLE Step 1. It is comprehensive, organized and tagged by system and by resource (First Aid, Pathoma, Sketchy), and continuously updated, which is why most students use it rather than building a deck from scratch.
Is Anki better than Quizlet for medical school?expand_more
For long-term retention of large volumes of material, Anki is generally better because its spaced-repetition algorithm schedules reviews based on your performance. Quizlet is simpler and fine for short-term or shared study sets, but it lacks the same retention-optimized scheduling.
How do I avoid falling behind on Anki?expand_more
Do your reviews every day, since backlogs grow quickly under spaced repetition. If you get behind, temporarily reduce or pause new cards and focus on clearing reviews rather than abandoning the deck. Keeping new cards modest from the start prevents most backlogs.
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