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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Chronic Lymphocytic Leukemia
An indolent clonal B-cell leukemia characterized by progressive accumulation of mature-appearing but dysfunctional lymphocytes, leading to lymphadenopathy and bone marrow failure.
Bacterial Meningitis
An acute, life-threatening bacterial infection of the brain and spinal cord membranes presenting with fever, headache, and stiff neck, requiring emergent antibiotic treatment.
Bullous Pemphigoid
Autoimmune blistering disease causing intensely itchy, tense fluid-filled blisters in older adults.
Interstitial Cystitis
A chronic condition causing severe pelvic pain and a constant urge to urinate, without an active bacterial infection.
Pheochromocytoma
A rare adrenal tumor that secretes excessive adrenaline and noradrenaline, causing dangerous spikes in blood pressure, headaches, sweating, and palpitations.
Panic Disorder
Recurrent, unpredictable episodes of overwhelming terror and physical symptoms, followed by persistent fear of future attacks.
Laryngeal Cancer
A malignant tumor of the voice box (larynx), most commonly squamous cell carcinoma, strongly linked to smoking and presenting early with hoarseness.
Giant Cell Arteritis
An inflammatory disease of the blood vessels, often affecting the head and temples, that can cause sudden, permanent blindness if not treated immediately.