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Bladder Cancer
Bladder cancer is a disease in which abnormal cells grow in the bladder and form a tumor. Most cases begin in the…
Breast Cancer
Breast cancer is a group of diseases in which cells in the breast grow abnormally and may form a tumor. It can…
Bronchiolitis
Bronchiolitis is inflammation and swelling of the small airways in the lungs, usually caused by a virus. It most commonly affects infants…
Bursitis
Bursae are small, fluid-filled sacs that cushion moving tissues and help bones, tendons, muscles, and skin glide smoothly around a joint. When…
Cardiac Amyloidosis
Cardiac amyloidosis is a condition in which abnormal amyloid proteins build up in the heart muscle. These deposits can make the heart…
Cardiac Arrhythmia
Cardiac arrhythmia, also called cardiac dysrhythmia, is an abnormal heart rhythm. The heart may beat too quickly, too slowly, or irregularly. Some…
Cardiac Sarcoidosis
Cardiac sarcoidosis is a condition in which sarcoidosis affects the heart. Inflammatory clusters called granulomas can form in heart tissue and may…
Cardiac Thrombosis
Cardiac thrombosis is a blood clot that forms inside the heart, also called an intracardiac thrombus. It may develop in a heart…
Cardiometabolic Disorders
Cardiometabolic disorders are a group of conditions that affect the heart, blood vessels, blood sugar, blood pressure, cholesterol, or body weight. These…
Cataract
A cataract is clouding of the eye's natural lens, the clear structure that helps focus light on the retina. This clouding can…
Celiac Disease
Celiac disease is an immune-mediated condition triggered by eating gluten, a protein found in wheat, barley, and rye. In people with celiac…
Cellulitis
Cellulitis is a bacterial infection of the deeper layers of the skin and the soft tissue beneath it. It commonly causes a…
Cerebral Palsy
Cerebral palsy is a group of neurological conditions that affect movement, posture, muscle control, and coordination. It results from abnormal development of,…
Cerebrovascular Disease
Cerebrovascular disease is a group of conditions that affect blood flow through the blood vessels supplying the brain. A blocked or narrowed…
Chiari Malformation
Chiari malformation is a group of structural conditions in which part of the cerebellum extends through the opening at the base of…
Chickenpox
Chickenpox is a contagious disease caused by the varicella-zoster virus. It commonly causes an itchy rash that changes from red spots to…
Childhood Depression
Childhood depression is a health condition that causes a persistent low mood, irritability, or both, along with a loss of interest in…
Chronic Lymphocytic Leukemia
Chronic lymphocytic leukemia (CLL) is a cancer of abnormal mature B lymphocytes, a type of white blood cell that helps fight infection.…
Chronic Occlusion
Chronic occlusion is a blockage in a blood vessel that has been present for several months or longer. On this page, the…
Chronic Pain
Chronic pain is pain that lasts beyond the expected healing period, usually for three months or longer, or pain that keeps returning.…
Cidp
Chronic inflammatory demyelinating polyradiculoneuropathy, or CIDP, is a neurological condition in which the immune system mistakenly damages the myelin covering of peripheral…
Congenital Disease
Congenital disease refers to a condition that is present at birth. Some conditions are inherited through changes in genes or chromosomes, while…
Congenital Heart Defect
A congenital heart defect is a structural problem in the heart that is present at birth. It can affect the heart chambers,…
Congenital Hydrocephalus
Congenital hydrocephalus is a condition in which too much cerebrospinal fluid (CSF) collects in or around a baby's brain. It is present…
