Evidence-Based Medical Encyclopedia
Explore thousands of diseases with authoritative clinical information from WHO, CDC, NIH, and international medical guidelines. Every condition features an interactive journey from diagnosis to treatment.
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Featured Conditions
Achalasia
Achalasia is an esophageal motility disorder caused by nerve degeneration, resulting in failure of the lower esophageal sphincter to relax and progressive difficulty swallowing.
Acromegaly
Acromegaly is a hormonal disorder caused by a pituitary tumor producing too much growth hormone, leading to enlarged hands, feet, and facial features.
Acute Coronary Syndrome
Acute Coronary Syndrome is a heart attack or severe angina caused by a sudden blockage in a coronary artery, cutting off blood and oxygen to the heart muscle.
Acne Vulgaris
Acne vulgaris is a common inflammatory skin condition caused by blocked hair follicles and oil glands, leading to pimples, blackheads, and cysts.
Acute Lymphoblastic Leukemia
A rapid-onset blood cancer where immature white blood cells (lymphoblasts) multiply uncontrollably in the bone marrow, crowding out healthy cells.
Acute Kidney Injury
Acute Kidney Injury is a sudden loss of kidney function, often due to decreased blood flow, toxins, or blockages, leading to a dangerous buildup of waste and fluids.
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Fibromyalgia
A chronic disorder causing widespread body pain, severe fatigue, and brain fog, stemming from how the brain processes pain.
Achalasia
Achalasia is an esophageal motility disorder caused by nerve degeneration, resulting in failure of the lower esophageal sphincter to relax and progressive difficulty swallowing.
Autosomal Dominant Polycystic Kidney Disease
A genetic disease where hundreds of large cysts grow inside the kidneys, destroying their ability to filter blood and causing massively enlarged kidneys, high blood pressure, and kidney failure.
Liver Cirrhosis
Extensive scarring of the liver caused by long-term damage, leading to liver failure, portal hypertension, and severe systemic complications.
Cushing Syndrome
A hormonal disorder caused by prolonged exposure to inappropriately high levels of cortisol.
Chronic Kidney Disease
Irreversible, progressive decline in kidney function occurring over months to years.
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Primary Aldosteronism
A hormonal disorder where the adrenal glands produce too much aldosterone, causing hard-to-treat high blood pressure and low potassium levels.
Autosomal Dominant Polycystic Kidney Disease
A genetic disease where hundreds of large cysts grow inside the kidneys, destroying their ability to filter blood and causing massively enlarged kidneys, high blood pressure, and kidney failure.
Non-ST-Segment Elevation Myocardial Infarction
A 'mild' heart attack where a heart artery is partially blocked, causing heart muscle damage without the classic ECG changes seen in fully blocked arteries.
Miller Fisher Syndrome
A Guillain-Barré variant characterized by the triad of ataxia, areflexia, and ophthalmoplegia, strongly associated with anti-GQ1b antibodies.
Pulmonary Tuberculosis
An airborne bacterial infection caused by M. tuberculosis that primarily affects the lungs, leading to granulomatous inflammation, cavitary lesions, and chronic respiratory symptoms.
Glaucoma
An eye condition that damages the optic nerve, often linked to high pressure inside the eye, leading to slow, unnoticeable loss of peripheral vision.
Small Cell Lung Cancer
A very fast-growing, aggressive lung cancer strongly linked to heavy smoking, presenting centrally in the chest and often spreading early to the brain and other organs.
Idiopathic Thrombocytopenic Purpura
An autoimmune bleeding disorder where the immune system destroys its own blood platelets, causing easy bruising and bleeding.
Hepatitis B Virus Infection
A viral liver infection that can become chronic, leading to progressive liver damage, cirrhosis, and a high risk of liver cancer.
Gastric Cancer
A slow-growing cancer of the stomach lining often linked to chronic bacterial infections or dietary factors, presenting late with vague symptoms.
Alcoholic Hepatitis
A life-threatening, acute inflammation of the liver caused by heavy alcohol use, presenting with rapid-onset jaundice and liver swelling.
Bronchiectasis
Permanent structural dilation of airways due to chronic inflammation and recurrent infections.