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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Mallory-Weiss Syndrome
A tear in the inner lining of the esophagus/stomach junction caused by severe vomiting, leading to vomiting of blood.
Acute Ischemic Stroke
An acute ischemic stroke is a 'brain attack' where a blood clot blocks blood flow to a part of the brain, causing sudden weakness, speech difficulty, or vision loss.
Rheumatoid Arthritis
A chronic autoimmune disease causing symmetric joint pain, swelling, and stiffness, which can lead to permanent joint damage if untreated.
Osteoarthritis
A wear-and-tear condition where the cartilage protecting the ends of bones wears down, causing pain, stiffness, and bone-on-bone friction in joints like the knees and hips.
Ankylosing Spondylitis
An inflammatory disease of the spine and sacroiliac joints causing chronic back pain, morning stiffness, and eventual fusion of the vertebrae, primarily affecting young HLA-B27 positive males.
Lupus Nephritis
Kidney inflammation caused by systemic lupus erythematosus, leading to protein in the urine, high blood pressure, and potential kidney failure if not treated aggressively.
Arterial Blood Gas Disorders
Dangerous imbalances in the blood's acidity and oxygen levels caused by severe lung, kidney, or metabolic diseases. Diagnosis requires drawing blood directly from an artery.
Systemic Lupus Erythematosus
A complex autoimmune disease where the body's immune system attacks its own tissues and organs, often causing a butterfly-shaped facial rash, joint pain, and kidney damage.
Non-Small Cell Lung Cancer
The most common type of lung cancer, encompassing adenocarcinoma and squamous cell carcinoma, frequently linked to smoking but heavily treated with new targeted and immunotherapies.
Myocarditis
Inflammation of the heart muscle, often triggered by a viral infection, which can weaken the heart and cause irregular heartbeats.
Diabetic Retinopathy
A progressive complication of diabetes resulting in damage to the retinal blood vessels, potentially leading to vision loss.
Inflammatory Bowel Disease
A chronic autoimmune condition that causes severe inflammation and sores in the digestive tract, leading to diarrhea, pain, and weight loss.