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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Infective Endocarditis
A serious bacterial infection of the heart valves that can destroy the valve and spread infected clots throughout the body.
Osteoporosis
A disease that weakens bones, making them fragile and more likely to break easily from a minor fall or normal daily activities.
Aortic Stenosis
A mechanical narrowing of the heart's aortic valve that restricts blood flow, causing severe chest pain, fainting, and heart failure. It requires surgical or transcatheter valve replacement once symptoms develop.
Mitral Regurgitation
A valvular disorder where the mitral valve fails to close completely, allowing blood to flow backward into the left atrium during ventricular contraction.
Epilepsy & Seizure Disorders
A brain disorder causing unprovoked, recurrent seizures due to abnormal electrical activity in the brain.
Erectile Dysfunction
The inability to get or keep an erection firm enough for sexual intercourse, often indicating underlying vascular or metabolic issues.
Hypertrophic Cardiomyopathy
A genetic condition causing abnormal thickening of the heart muscle, leading to breathing problems, chest pain, and a risk of sudden cardiac death.
Hyperprolactinemia
Elevated prolactin hormone levels, usually from a benign pituitary tumor, causing milky nipple discharge and infertility.
Lyme Disease
A tick-borne bacterial infection that starts with a bullseye rash and can spread to cause severe joint pain, facial paralysis, and heart block if left untreated.
Irritable Bowel Syndrome
A common functional GI disorder causing recurrent abdominal pain associated with changes in stool frequency or form, managed with diet, stress reduction, and symptom-directed medications.
Chronic Pancreatitis
Permanent inflammatory scarring of the pancreas leading to intractable pain, malabsorption, and diabetes.
Clostridioides Difficile Colitis
A severe, antibiotic-associated colonic infection causing profuse diarrhea and colon inflammation due to toxins released by C. difficile bacteria.