For medical students, navigating the vast sea of microbiology for the USMLE Step 1 is often a nightmare. With hundreds of bacteria, viruses, fungi, and parasites to memorize, traditional flashcards and lectures frequently fail to cement long-term recall.
Enter SketchyMicro.
By pairing visual memory triggers (symbols, colors, and stories) with high-yield facts, SketchyMicro has revolutionized how students learn bugs and drugs. However, with over 100 videos across the main and supplemental series, keeping track of what to watch—and in what order—is challenging.
This article provides the complete, categorized Sketchy Micro videos list for 2025. Whether you are an M2 preparing for dedicated or an M1 trying to survive your ID block, use this guide to track your progress.
Sketchy offers hours of content, but not all of it is high-yield for every exam. The key to using Sketchy effectively is efficiency. You want to watch the stories that are going to show up on your Step 1 or class exams.
Here is your roadmap.
If you are compiling a "Sketchy Micro Videos List" to organize your medical school studies, you are likely looking for a way to categorize the massive library of microbes—bacteria, viruses, fungi, and parasites—into a manageable curriculum.
Sketchy is the "gold standard" for medical microbiology, using the Method of Loci to turn dense clinical facts into memorable, bite-sized cartoons. Comprehensive Sketchy Micro Video Categories
A proper write-up for your list should follow the standard organizational structure used by the Sketchy Microbiology course: 1. Bacteria (The Foundation)
This is the largest section and is typically broken down by Gram stain and shape: Gram-Positive Cocci: Includes Staph aureus , Staph epidermidis , and the various Streptococcus species (e.g., " The Band of Strep Gram-Positive Bacilli: Clostridia (e.g., ), ("Santa's List"), and Gram-Negative Cocci: species. Gram-Negative Bacilli: Divided into Enterics (e.g., , Salmonella ) and Respiratory/Zoonotics (e.g., Bordetella , Pasteurella Other: Mycobacteria (TB), Spirochetes (Syphilis, Lyme), and 2. Viruses (RNA & DNA Families) Viruses are often grouped by their genome structure: RNA Viruses: Includes Picornaviridae Flaviviridae Coronaviridae DNA Viruses: Includes Herpesviridae Poxviridae Hepadnaviridae 3. Fungi (Mycology)
Categorized by systemic, opportunistic, or cutaneous infections: Systemic Mycoses: Histoplasma , Blastomyces , and Coccidioides Opportunistic: , Aspergillus , and Cryptococcus 4. Parasites (Protozoa & Helminths) 3/26/24: Master Microbiology with Sketchy Sketchy Micro Videos List-
Sketchy Microbiology is widely considered the "gold standard" for medical school microbiology, with many students and residents claiming it is "worth its weight in gold" for long-term retention. It uses the method of loci—a visual mnemonic system that anchors dry facts to unforgettable characters and scenes—to help you recall complex details about bacteria, viruses, fungi, and parasites during high-stakes exams like USMLE Step 1. Key Benefits
Long-Term Retention: Reviewers often report remembering specific "sketches" years after watching them, which aids in recall during clinical rotations and residency.
Organizational Framework: It helps "un-jumble" similar pathologies and drug mechanisms by providing a unique visual world for each organism.
"Free Points" on Exams: Many students credit Sketchy with making micro the easiest section on Step 1, often leading to a significant score jump. The Sketchy Micro Curriculum The course is divided into four main logical categories:
| Video Name | Key Organism / Topic | High-Yield Takeaway | | :--- | :--- | :--- | | Salmonella Typhi | Typhoid fever | H2S positive; Vi antigen; rose spots. | | Salmonella Enteritidis | Gastroenteritis | Gastroenteritis; poultry/eggs. | | Shigella | Shigellosis | Shiga toxin (similar to EHEC); bloody diarrhea; low inoculum. | | Proteus Mirabilis | Kidney stones | Urease positive; "swarming motility." | | Yersinia Pestis | Plague | "Safety pin" appearance (bipolar); fleas/rodents. | | Yersinia Enterocolitica | Enterocolitis | "Pseudoappendicitis." | For medical students, navigating the vast sea of
What is your hardest bug to memorize? Let me know in the comments below!
Disclaimer: This list is based on the standard USMLE Step 1 SketchyMedical library as of this writing. Video count and availability are subject to change based on your subscription tier.
This is the largest section. We have split it into Respiratory and Enteric (Gut) families.
Sketchy Micro isn't just "watching cartoons." It is utilizing the Method of Loci (the memory palace technique) used by memory champions.
Use the list above to curate your study sessions. Don't try to binge them all in one week. Pick one scene, learn the symbols, and crush your micro section. If you are compiling a "Sketchy Micro Videos
Happy studying, and may your gram stains always be accurate!