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.
Parturition and Routine Care
Overview Parturition Physiology Preterm: defined as babies born alive before 37 weeks of pregnancy are completed. Term: defined as babies born alive after 37 weeks and before 42 weeks Postterm (induced for labour): defined as babies born alive after 42 weeks. Birthweight Low birth weight: <2500g regardless of age Very low birth weight: <1500g regardless of…
View topic ↗Hypermobility Syndromes
Overview Hypermobility Spectrum Disorder (HSD) describes symptomatic joint hypermobility with musculoskeletal (and sometimes systemic) consequences in people who do not meet the 2017 diagnostic criteria for hypermobile Ehlers–Danlos syndrome (hEDS) or another heritable connective-tissue disorder (HCTD). Prevalence of generalised joint hypermobility varies (≈2–35% depending on age/sex/ethnicity and cut-offs), with symptomatic states more common in females…
View topic ↗Otitis Externa
Overview Acute otitis externa (AOE) is a common ear condition seen in the primary health care setting. Also known as ‘swimmer’s ear’ or ‘tropical ear’, it is prevalent in hot humid climates. AOE is an inflammatory condition of the ear canal skin. The causes are infective or non-infective. Otitis externa: Inflammation of the outer ear…
View topic ↗Obstructive Sleep Apnoea
Overview Sleep apnea syndrome is an extremely common medical disorder associated with important morbidity. Sleep Apnea and can be classified as: Obstructive Sleep Apnea – is the most common, characterized by repetitive, intermittent collapse of the upper (pharyngeal) airway during sleep, which causes apnoeic episodes terminated by partial arousal Central Sleep Apnea - characterised by repetitive absent or diminished…
View topic ↗Undifferentiated Connective Tissue Disease (UCTD)
Overview UCTD is a systemic autoimmune disease with features of connective tissue disease (CTD), but does not fulfill classification criteria for any specific CTD such as SLE, Sjögren’s syndrome, systemic sclerosis, or polymyositis. It is a diagnosis of exclusion used for patients with persistent autoimmune features who do not evolve into a defined CTD. Commonly…
View topic ↗Prostatitis
Overview Prostatitis refers to a spectrum of conditions involving inflammation of the prostate gland, ranging from acute bacterial infection to chronic pelvic pain syndromes. It is a common urological condition affecting men of all ages, particularly those aged 30–50 years. The National Institutes of Health (NIH) classifies prostatitis into four categories: acute bacterial, chronic bacterial, chronic…
View topic ↗Hyper-IgE Syndrome (Job’s Syndrome)
Overview Hyper-IgE syndrome (HIES) is a rare primary immunodeficiency characterised by markedly elevated serum IgE, recurrent staphylococcal skin and lung infections, eczema, and connective tissue/ skeletal abnormalities. Most commonly caused by autosomal dominant mutations in STAT3 , it results in impaired Th17 cell differentiation and defective neutrophil chemotaxis. Autosomal recessive forms (DOCK8, TYK2 mutations) present…
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.

Hypertension – Overview (causes, pathophysiology, investigations, treatment
Learn the essentials of hypertension, including its common causes, underlying pathophysiology, and how it's diagnosed and treated. This video provides a comprehensive overview of blood pressure regulation, risk factors, and evidence-based management strategies.

Congenital Hypertrophic Pyloric Stenosis
Understand Pyloric Stenosis, a condition that affects infants and causes severe vomiting due to the narrowing of the pylorus. This video explains the causes, symptoms, diagnosis, and treatment options, including the importance of early intervention. Ideal for parents, medical students, and healthcare professionals seeking clear, concise information on this common pediatric condition.

Lysosome Explained: Structure, Function, Autophagy & Clinical Correlates
Lysosomes: how they digest, recycle, and protect cells — learn lysosome structure, enzymes, formation, functions, and disease. Lysosomes are membrane-bound organelles packed with hydrolytic enzymes (proteases, lipases, glycosidases, nucleases) that function in an acidic environment maintained by V-type ATPases. This video explains lysosome structure, how the Golgi and endoplasmic reticulum produce and target enzymes via…
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.
Lambert-Eaton Myasthenic Syndrome
Overview Lambert–Eaton myasthenic syndrome (LEMS) is a rare autoimmune disorder of the presynaptic neuromuscular junction. It causes impaired acetylcholine release, producing the characteristic triad of proximal muscle weakness, reduced reflexes and autonomic dysfunction. LEMS may occur as a paraneoplastic syndrome—most commonly associated with small-cell lung cancer (SCLC)—or as a non-tumour-associated autoimmune disorder. Neuromuscular junction: connection…
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.



