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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Diverticulitis
Inflammation or infection of small pouches in the wall of the large intestine, causing severe lower abdominal pain.
Generalized Anxiety Disorder
A chronic condition of excessive, uncontrollable worry about everyday life events, accompanied by physical symptoms like muscle tension and fatigue.
Acute Pyelonephritis
A severe bacterial infection of the kidneys, usually ascending from the bladder, causing flank pain, high fever, and systemic illness.
Type 1 Diabetes Mellitus
An autoimmune condition where the pancreas produces zero insulin, requiring lifelong daily insulin injections to survive.
Anaphylaxis
A severe, sudden, and life-threatening allergic reaction involving the whole body, causing difficulty breathing, throat swelling, and a dangerous drop in blood pressure.
Erythema Nodosum
A skin condition causing tender, red bumps under the skin, usually on the shins, representing an allergic reaction to infections, medications, or other diseases.
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.
Primary Biliary Cholangitis
An autoimmune liver disease where the immune system slowly attacks the small bile ducts in the liver, leading to bile buildup, severe itching, and fatigue.
Herpes Zoster
Reactivation of the chickenpox virus causing a painful, blistering skin rash confined to one side of the body in a specific nerve distribution (dermatome).
Barrett Esophagus
A change in the lining of the lower esophagus from squamous to intestinal-type cells due to chronic acid reflux, carrying a risk of developing esophageal cancer.
Cystic Fibrosis
A genetic disease causing thick, sticky mucus buildup in the lungs and digestive tract, leading to life-threatening respiratory infections and malnutrition.