Hemoglobin A1C test - A test that helps with diabetes control by showing what the average blood sugar, or glucose, has been for the past 2 to 3 months. The test measures how much sugar is attached to ...

Hemorrhoids are a condition where the veins around the anus or lower rectum are swollen or inflamed (hot, red, tender and/or swollen). They often result from: frequent constipation or diarrhea straini ...

Hepatitis means inflammation of the liver. It is commonly caused by hepatitis viruses A, B, C, D and E. Major non-viral causes of hepatitis are alcohol and drugs. Following is key information about He ...

HIV is the short name for Human Immunodeficiency Virus, the virus that causes AIDS, Acquired Immune Deficiency Syndrome (See also AIDS and Immune Deficiency). HIV seriously interferes with the body's ...

HIV Mother to Child Transmission - Transmission of HIV (type 1) from mother to child during pregnancy, vaginal delivery, or from breast feeding. Infected children usually appear healthy at birth, but ...

Hormone Replacement Therapy - For many years, hormone replacement therapy (also called HRT) was widely used to decrease or eliminate symptoms of menopause. It is also sometimes called estrogen replace ...

HPV vaccine is designed to immunize (protect) against certain STD's such as cervical cancer and genital warts, both of which are caused by human papillomaviruses. Current vaccine targets four types of ...

Human Papilloma Virus (HPV) - is used for a group of viruses that includes more than 100 different types or strains. More than 30 of these viruses are sexually transmitted and they can infect the geni ...

Hypercholesterolemia is a condition characterized by very high levels of cholesterol in the blood. Cholesterol is a waxy, fat-like substance that is produced in the body and obtained from foods that c ...

Hypertension or high blood pressure is a disease in which the force of blood pushing against the walls of the blood vessels gets too high, and stays that way without treatment. Nearly 4 out of every 1 ...