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What is COPD? COPD (chronic obstructive pulmonary disease) is a group of lung diseases that make it hard to breathe and get worse over time. Normally, ...
Having a long-term, or chronic, illness can disrupt your life in many ways. You may often be tired and in pain. Your illness might affect your appearance or ...
No matter how well you have prepared, you might feel dazed or numb after going through a disaster. You may also feel sad, helpless, or anxious. In spite ...
Your cornea is the outermost layer of your eye. It is clear and shaped like a dome. The cornea helps to shield the rest of the eye from germs, dust, and other ...
Corns and calluses are caused by pressure or friction on your skin. They often appear on feet where the bony parts of your feet rub against your shoes. Corns ...
What is coronary artery bypass surgery? Coronary artery bypass surgery creates a new path for blood to flow to your heart. This surgery is sometimes called ...
What is coronary artery disease? Coronary artery disease (CAD) is the most common type of heart disease in the United States and a leading cause of death ...
Cosmetics are products you apply to your body to clean it, make it more attractive, or change the way it looks. They include: Hair dyes Makeup Perfumes Skin-care ...
Coughing is a reflex that keeps your throat and airways clear. Although it can be annoying, coughing helps your body heal or protect itself. Coughs can be either ...
COVID-19 (coronavirus disease 2019) is an illness caused by a virus. This virus is a coronavirus called SARS-CoV-2. It spreads when a person who has the infection ...
COVID-19 (coronavirus disease 2019) is a disease caused by a virus called SARS-CoV-2. There are two types of tests for this virus: A viral test tells you if ...
COVID-19 (coronavirus disease 2019) is an illness caused by a virus. This virus is a coronavirus called SARS-CoV-2. Most people with COVID-19 have mild symptoms, ...
What is CPR? Cardiopulmonary resuscitation (CPR) is used when a person's heart has stopped beating, called cardiac arrest, or when a person has stopped ...
Craniofacial is a medical term that relates to the bones of the skull and face. Craniofacial abnormalities are birth defects of the face or head. Some, like cleft ...
Creutzfeldt-Jakob disease (CJD) is a rare, degenerative brain disorder. Symptoms usually start around age 60. Memory problems, behavior changes, vision problems, ...
What is critical care? Critical care is medical care for people who have life-threatening injuries and illnesses. It usually takes place in an intensive ...
What is Crohn's disease? Crohn's disease is a chronic (long-lasting) disease that causes inflammation in your digestive tract. It can affect any part of ...
Croup is an inflammation of the vocal cords (larynx) and windpipe (trachea). It causes difficulty breathing, a barking cough, and a hoarse voice. The cause is ...
What is cryptosporidiosis? Cryptosporidiosis is a contagious disease that causes watery diarrhea. It is caused by parasites called Cryptosporidium, or ...
What is a CT scan? Computed tomography (CT) is a type of medical imaging test that uses special x-ray equipment to make detailed pictures of the inside ...
