Step 1
Start with free Step 1 subjects
Biochemistry and Microbiology are open to everyone. Every other subject still includes free previews for each condition; plans unlock the full Step 1 details.
How students use it
Start from the thing that confused you.
Coming from class, Anki, or a qbank miss? Pick the subject, open the condition, and use the same structure to connect cause, presentation, workup, treatment, and differentials.
- Find the subject. Start with the system or course block where the fact appeared.
- Open the condition. Use the overview and clinical definition to rebuild the concept.
- Check the look-alikes. Use workup and differentials when a question or card feels ambiguous.
Step 1 subjects
Biochemistry 12 sections, 91 conditions
Cardiovascular 19 sections, 98 conditions
Endocrine 8 sections, 49 conditions
Gastrointestinal 20 sections, 113 conditions
- Abdominal Wall
- Appendix
- Bilirubin Disorders
- Billiary/Gallbladder
- Bleeding/Ischemia
- Bowel Obstruction
- Cancer Syndromes
- Colon & Rectum
- Congenital/Neonatal
- Divericular
- Esophagus
- Functional Bowel
- Inflammatory Bowel
- Liver & Cirrhosis
- Liver Tumors
- Pancreas
- Polyposis Syndromes
- Portal Hypertension
- Small Intestine
- Stomach & Duodenum
Hematology-Oncology 17 sections, 62 conditions
Immunology 5 sections, 29 conditions
Microbiology 7 sections, 210 conditions
Musculoskeletal-Skin 31 sections, 163 conditions
- Benign Lesions
- Blistering Skin
- Bone Ischemia
- Bone Metabolism
- Bone Tumors
- Bone/Joint Infection
- Burns
- Childhood Bone/Joint
- Crystal Arthritis
- Degenerative Joints
- Dermatitis/Rashes
- Fractures
- Fungal Skin
- Hand & Wrist
- Inflammatory Joints
- Ligaments & Sprains
- Limb Emergencies
- Meniscus/Cartilage
- Nerve Entrapment
- Nerve Injuries
- Neuromuscular
- Pain Syndromes
- Pigment/Genetics
- Skin Cancers
- Skin Infections
- Soft Tissue Masses
- Systemic Autoimmunity
- Systemic Skin Signs
- Tendons and Bursa
- Vasculitis
- Viral Skin
Neurology & Senses 28 sections, 147 conditions
- Birth Head Injury
- Brain Tumors
- Cerebrovascular
- Cognitive/Dementia
- Congenital Brain
- Cranial Nerves
- Demyelination
- Eye Surface/Eyelids
- Genetic Neurology
- Glaucoma/Lens
- Head Trauma
- Headache/Heat
- Intracranial Pressure
- Language
- Motor Pathways
- Movement Disorders
- Neuro Ophthalmology
- Neurocutaneous
- Neurologic Infections
- Pain/Sensory
- Pediatric Eye
- Peripheral Nerves
- Retina & Macula
- Retina Vascular
- Seizures
- Spinal Cord
- Vertigo & Hearing
- Vision & Refraction
Psychiatry 18 sections, 154 conditions
Renal 17 sections, 65 conditions
Reproductive 18 sections, 129 conditions
Respiratory 11 sections, 56 conditions