AIDS (acquired immune deficiency syndrome) is caused by the human immunodeficiency virus (HIV), which kills or impairs cells of the immune system and progressively destroys the body's ability to fight infections and certain cancers. HIV is most commo
Shedding 50 to 100 hairs a day is normal. When a hair is shed, it is replaced by a new hair from the same follicle and the growing cycle starts again. Scalp hair grows about one-half inch a month. As people age, the rate of hair growth slows.
Halitosis is an oral health condition characterized by consistently odorous breath.
There are many common hand problems that can interfere with activities of daily living (ADLs),
Thyroiditis is the inflammation of the thyroid gland. Hashimoto's thyroiditis is the most common form of thyroiditis.
A head injury is a broad term that describes a vast array of injuries that occur to the scalp, skull, brain, and underlying tissue and blood vessels in the head.
A headache is pain or discomfort in the head or face area.
A heart attack occurs when one or more regions of the heart muscle experience a severe or prolonged lack of oxygen caused by blocked blood flow to the heart muscle.
Heart failure, also called congestive heart failure, is a condition in which the heart cannot pump enough oxygenated blood to meet the needs of the body's other organs.
Heart murmurs are additional sounds made by blood flowing through the heart as it beats. Many murmurs are harmless (innocent), but some abnormal murmurs might signal a heart problem.
The heart’s valves can have one of two malfunctions - regurgitation (when the valve does not completely close) or stenosis (a narrowing of the valve).
H. pylori is a spiral-shaped bacterium found in the stomach, which (along with acid secretion) damages stomach and duodenal tissue, causing inflammation and peptic ulcers.
Hematuria is the presence of red blood cells (RBCs) in the urine.
Hemochromatosis, also called iron overload disease, is one of the most common genetic disorder in the US.
Hemolytic anemia is a disorder in which the red blood cells are destroyed faster than the bone marrow can produce them.
Hemolytic uremic syndrome is a rare condition that mostly affects children under the age of 10. It is often characterized by damage to the lining of blood vessel walls, destruction of red blood cells, and kidney failure.
Hemorrhoids are blood vessels, normally present in and around the anus and lower rectum, that have become swollen due to stretching under pressure.
Hepatitis A is a highly contagious and sometimes serious liver disease caused by the hepatitis A virus.
Hepatitis C (once called non-A, non-B hepatitis) is a liver disease caused by a recently identified blood-borne virus.
Hepatitis B is a blood-borne microorganism transmitted by exposure to the hepatitis B virus through infectious body fluids.