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What do you mean by Hidden Testicle? Hidden Testicle, also known as Undescended testicle, refers to the medical condition in which there is testicle only on one side and in…
What is Hirsutism? Hirsutism refers to the condition in which unwanted, male-pattern hair grow on female’s body parts like face, chin, chest and back. Normally, women have fine, pale, faintly…
What is AIDS? 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…
Facts about normal hair growth: About 90 percent of hair on the scalp grows continually. The other 10 percent of scalp hair is in a resting phase that lasts two…
Anatomy of the hand The hand is composed of many different bones, muscles, and ligaments that allow for a large amount of movement and dexterity. There are three major types…
What is Hashimoto's thyroiditis? Thyroiditis is the inflammation of the thyroid gland. Hashimoto's thyroiditis is the most common form of thyroiditis. Classified as an autoimmune disorder, Hashimoto's thyroiditis is the…
What is a head injury? Head injuries are one of the most common causes of disability and death in adults. The injury can be as mild as a bump, bruise…
What is Headache? A headache is dull or sharp pain or throbbing sensation in any region of the head. It may occur either in one or both sides of the…
What is a heart attack (myocardial infarction)? A heart attack, or myocardial infarction, occurs when one or more regions of the heart muscle experience a severe or prolonged lack of…
What is heart failure? 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…
What causes a heart murmur? Heart murmurs may be caused by a number of factors or diseases, including defective heart valves holes in the heart walls (atrial septal defect or…
What are heart valves? The heart consists of four chambers, two atria (upper chambers) and two ventricles (lower chambers). There is a valve through which blood passes before leaving each…
What is Helicobacter pylori (H. pylori)? 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…
What is hematuria? Hematuria is the presence of red blood cells (RBCs) in the urine. Often, the urine appears normal to the naked eye, but examination under a microscope shows…
What is hemochromatosis? Hemochromatosis, also called iron overload disease, is one of the most common genetic disorder in the US. It is a metabolic disorder that causes increased absorption of…
What is hemolytic anemia? Hemolytic anemia is a disorder in which the red blood cells are destroyed faster than the bone marrow can produce them. The term for destruction of…
What is hemolytic uremic syndrome (HUS)? Hemolytic uremic syndrome is a rare condition that mostly affects children under the age of 10. It is often characterized by: damage to the…
What are hemorrhoids? Hemorrhoids are veins, normally present in and around the anus and lower rectum, that have become swollen due to stretching under pressure. These are very common in…
What is hepatitis? The liver is one of the organs that helps with digestion but is not part of the digestive tract. It is the largest organ in the body…
What is hepatitis? The liver is one of the organs that helps with digestion but is not part of the digestive tract. It is the largest organ in the body…
What is hepatitis? The liver is one of the organs that helps with digestion but is not part of the digestive tract. It is the largest organ in the body…
What is a hiatal hernia? A hernia is a protrusion of part of an organ through the muscle wall that surrounds it. A hiatal hernia occurs when the upper part…
What is blood pressure? Blood pressure is the force of the blood pushing against the artery walls. The force is generated with each heartbeat as blood is pumped from the…
What is a hip fracture? A hip fracture is a break in the femur (thigh bone) of the hip joint. Joints are areas where two or more bones meet. The…
What is the hip? The hip is defined as the region on each side of the pelvis. The pelvis bone is made up of three sections, including the following: ilium…
What is Hodgkin disease? Hodgkin disease is a type of lymphoma, a cancer in the lymphatic system. The American Cancer Society estimates that in 2009 about 8,510 new cases will…
What is hyperparathyroidism? Hyperparathyroidism is caused by overactive parathyroid glands. Overactive parathyroid glands produce too many parathyroid hormones, which in turn stimulate increased levels of calcium in the bloodstream. The…
What is hypoglycemia? Hypoglycemia is a condition characterized by a glucose (blood sugar) level that is too low to effectively fuel the body's blood cells. Glucose is the main source…
What is hypoparathyroidism? Hypoparathyroidism is caused by underactive parathyroid glands. Underactive parathyroid glands do not produce enough parathyroid hormones. This causes low levels of calcium in the bloodstream. The low…
Novel H1N1 flu, popularly known as swine flu, is a respiratory infection caused by an influenza virus first recognized in spring 2009. The new virus, which is officially called swine…
What are Head injuries? Head injuries are injuries caused to your brain, skull or scalp. They can vary from a mild bump on your head to a bruise or traumatic…
What is Hydrocephalus? Hydrocephalus is a condition in which fluid builds up in the cavities deep within the brain and causes it to swell. This excessive accumulation of fluid increases…
What is Hematuria? Hematuria is a medical condition in which there is presence of blood in person’s urine. There are mainly two types of Hematuria: Gross Hematuria: When you can…
What is a Hernia? Hernia occurs when fatty or intestinal tissues protrude through a weak spot in your groin muscle. This results in a bulge that is very painful during…
What is High Risk Pregnancy? A High Risk Pregnancy is a pregnancy in which potential complications occur that could affect the mother or baby, or both. It is important that…
What is Heel Pain? Heel Pain is a very common foot problem in which one experiences pain either under the heel or just behind it. At times, this pain can…
What do you mean by Hyperpituitarism? Hyperpituitarism refers to the condition in which pituitary gland produces excessive amount of certain kinds of hormones related to growth, reproduction and metabolism. It…
What is Hyperthyroidism? Hyperthyroidism refers to a condition in which your overactive thyroid gland produces excessive amount of thyroid hormones that circulate in your blood. It can greatly accelerate your…
What do you mean by Hypopituitarism? Hypopituitary refers to a condition in which pituitary gland doesn’t produce one or more of its eight hormones resulting in deficiency of pituitary hormones.…
What is hypopituitarism? Hypopituitarism, also called an underactive pituitary gland, is a condition that affects the anterior lobe of the pituitary gland - usually resulting in a partial or complete…
What is Hypothyroidism? Hypothyroidism, also known as underactive thyroid disease, is a very common problem in which your thyroid gland is unable to make sufficient thyroid hormones. Since thyroid hormone…
What is halitosis? Halitosis is an oral health condition characterized by consistently odorous breath. Often identifying the cause of bad breath is the first step toward treating this preventable condition.…