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Chilblains (CHILL-blayns) are the painful inflammation of small blood vessels in your skin that occur in response to repeated exposure to cold but not freezing air. Also known as pernio, chilblains can cause itching, red patches, swelling and blistering on your hands and feet. Chilblains usually clear up within one to three weeks, especially if Read more…

Chickenpox (varicella) is a viral infection that causes an itchy, blister-like rash. Chickenpox is highly contagious to people who haven’t had the disease nor been vaccinated against it. Before routine chickenpox vaccination, virtually all people had been infected by the time they reached adulthood, sometimes with serious complications. Today, the number of cases and hospitalizations Read more…

Chiari malformation (kee-AH-ree mal-for-MAY-shun) is a condition in which brain tissue extends into your spinal canal. It occurs when part of your skull is abnormally small or misshapen, pressing on your brain and forcing it downward. Chiari malformation is uncommon, but improved imaging tests have led to more frequent diagnoses. Chiari malformation type I develops Read more…

Chest pain comes in many varieties, ranging from a sharp stab to a dull ache. Some chest pain is described as crushing or burning. In certain cases, the pain travels up the neck, into the jaw, and then radiates through to the back or down one or both arms. Many different problems can cause chest Read more…

Chemo brain is a common term used by cancer survivors to describe thinking and memory problems that can occur after cancer treatment. Chemo brain can also be called chemo fog, chemotherapy-related cognitive impairment or cognitive dysfunction. Though chemo brain is a widely used term, it’s misleading. It’s unlikely that chemotherapy is the sole cause of Read more…

Charcot (shahr-KOH)-Marie-Tooth disease is a group of hereditary disorders that damage the nerves in your arms and legs (peripheral nerves). Charcot-Marie-Tooth is also known as hereditary motor and sensory neuropathy. The main signs and symptoms of Charcot-Marie-Tooth disease are muscle weakness and decreased muscle size. You may also notice decreased sensation in affected areas. Foot Read more…

Chagas (CHAH-gus) disease is an inflammatory, infectious disease caused by a parasite found in the feces of the triatomine (reduviid) bug. Chagas disease is common in South America, Central America and Mexico, the primary home of the triatomine bug. Rare cases of Chagas disease have been found in the southern United States, as well. Also Read more…

Cervicitis is an inflammation of the cervix, the lower, narrow end of your uterus that opens into the vagina. It’s possible to have cervicitis and not experience any signs or symptoms. Among the signs and symptoms women sometimes notice are bleeding between menstrual periods and changes in vaginal discharge. Often, cervicitis results from a sexually Read more…