Visual medical education by Armando Hasudungan
Medical science, drawn into focus.
Explore visual explanations that reveal how the facts, processes and clinical patterns fit together—then discover the coming AH study platform, built to guide what you study next and check what stuck.
Clear visual explanations used by medical and allied-health learners around the world.
Explore the free library
Start with the topic in front of you.
Browse by subject or jump straight into the explanation you need. No account required.

Testicular Torsion
Overview Testicular torsion is a urological emergency caused by twisting of the spermatic cord, leading to acute interruption of blood flow to the testis and rapid ischemia. It most commonly occurs in adolescents (peak 12–18 years) but can occur at any age, including neonates. The incidence is approximately 1 in 4,000 males under 25 years. Early…
View topic ↗
Pregnancy (not a disease)
Overview Pregnancy – Overview Physiological Changes in Pregnancy Uterus, Vagina and Breast Physiology changes Uterus (Cervix + Isthmus + Body of uterus) Muscle hypertrophy til 20weeks then stretching till term. Uterine and ovarian arteries undergo hypertrophy Cervix Reduced collagen → allows dilatation Hypertrophy of cervical glands → thick mucus plug Uterine body ↑size, shape, shape and consitency Increases…
View topic ↗
Acute Cholecystitis
Overview Acute cholecystitis is acute inflammation of the gallbladder, usually caused by a gallstone obstructing the cystic duct. Persistent obstruction causes gallbladder distension, inflammation and possible secondary bacterial infection. Most cases are calculous, while acalculous cholecystitis occurs mainly in critically ill or severely immunocompromised patients. Cholecystectomy: surgical removal of the gallbladder. Calculous cholecystitis: gallbladder inflammation…
View topic ↗
Diabetes Mellitus Type II
Overview Diabetes Mellitus type II is a progressive disorder defined by deficits in insulin secretion and action (insulin resistance). 1 in 12 people have diabetes (50% do not know they have it). Diabetes type II accounts for over 90% of all diabetes cases. The remaining 10% include type I diabetes. People with type II diabetes…
View topic ↗
Pyoderma Gangrenosum
Overview Pyoderma gangrenosum (PG) is a rare, severe, non-infectious inflammatory cutaneous disease belonging to the group of neutrophilic dermatoses . Despite its name, it is neither an infectious pyoderma nor a primary gangrenous necrosis; rather, it is driven by dysregulated innate immune activation leading to dermal neutrophilic infiltration and tissue destruction. Characterized by rapidly expanding,…
View topic ↗
Primary Hyperaldosteronsim (Conn Syndrome)
Overview Primary hyperaldosteronism (also known as Conn syndrome when caused by a solitary aldosterone-producing adenoma) is an endocrine disorder characterized by the autonomous, unregulated overproduction of aldosterone from the zona glomerulosa of the adrenal cortex. Under physiological conditions, aldosterone secretion is regulated by the renin-angiotensin-aldosterone system (RAAS) and serum potassium levels. In primary hyperaldosteronism, aldosterone…
View topic ↗
Angioedema (allergic or idiopathic)
Overview Angioedema is a transient, localised swelling of the deeper dermis, subcutaneous tissue or submucosa caused by increased vascular permeability. It commonly affects the lips, eyelids, tongue, face, extremities or genitalia. Gastrointestinal and upper-airway involvement may also occur. 1 Allergic angioedema is usually mast-cell-mediated and often occurs with urticaria, pruritus or other features of anaphylaxis.…
View topic ↗Full resource library
Browse all topics ↗Choose how you learn
One idea. More than one way to see it.
Use the format that helps the topic click, then switch formats when you need to reinforce it.
Videos
Hand-drawn explanations that build the big picture as the concept unfolds.
Notes
Clear written explanations for review, reference and filling in the details.
Diagrams
Visual snapshots that help you easily review topics.
Questions
Test whether the explanation stayed with you—not just whether it looked familiar.
Good places to begin
Explanations learners return to.

Liver Disease Part I
Get an introduction to liver disease by exploring common causes, early signs, and how liver function is affected. This video covers the basics of hepatic injury, inflammation, and the progression toward conditions like fibrosis or cirrhosis.

Klinefelter Syndrome – 47, XXY Karytype
Learn about Klinefelter syndrome, a genetic condition characterized by the 47, XXY karyotype, and how it affects male development. This video explains its causes, clinical features, hormonal imbalances, and approaches to diagnosis and management.

Osteoporosis (Part I)
Learn the fundamentals of Osteoporosis in Part I—covering its pathophysiology, risk factors, and the role of bone remodeling. Perfect for medical students and healthcare professionals seeking a clear, exam-focused breakdown of this common metabolic bone disease.
Our mission
Medical science is complex. Understanding it should feel possible.
Armando Hasudungan turns difficult medical science into clear visual explanations and connected learning experiences—so learners can see the whole picture, remember what matters and find a clearer way forward.




See it clearly
Turn abstract processes and invisible relationships into something the learner can picture.
Connect the pieces
Build understanding around how concepts fit together—not a pile of isolated facts.
Make it useful
Help learners move from explanation to recall, revision and the next logical step.
What clarity feels like
When the topic stops being a blur.
Learners do not come back because the subject became easy. They come back because the explanation gave them a picture they could work with.
“Armando's teaching style gives me the foundational knowledge.
“The notes I make during his videos help me retain everything better.
“The drawings are amazing and super easy to remember.
Coming soon: the AH study platform
The explanation is only the start.
The free library helps you find a clear explanation. The AH platform is being built to help you connect the resources, follow a clearer path and check what actually stuck.
- Watch in a focused, ad-free study environment.
- Move between connected videos, notes, diagrams and questions.
- Know what belongs next instead of rebuilding the study path yourself.
- Test your understanding while the topic is still fresh.
New and worth a look
Keep building the picture.
Femoroacetabular Impingement Syndrome
Overview Femoroacetabular impingement syndrome (FAIS) is a motion-related clinical disorder of the hip in which symptoms and clinical signs occur in association with characteristic femoral and/or acetabular morphology. The accepted diagnostic concept is a triad of symptoms, clinical signs and imaging findings ; bone morphology alone does not establish the syndrome. Patients commonly present with…
View this topic ↗About Visualising Medicine
Good education does not remove complexity. It makes complexity feel simple.
Visualising Medicine is the team behind Armando Hasudungan. We bring together medicine, illustration, writing and technology to make difficult ideas clearer—and build better ways for learners to use them.



