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  » Medical Terms Glossary
Patients will find this glossary of medical terms very useful to explain complicated medical terminology.

Click on a letter to view the corresponding section of the glossary:

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Medicines that block histamine2 reducing the amount of acid the stomach produces. Histamine causes the stomach to make acid.
A painful, burning feeling in the chest. Heartburn is caused by stomach acid flowing back into the esophagus.
Helicobacter pylori (H. pylori)
damages stomach and duodenal tissue, causing ulcers.
Hemoglobin A1C (HbA1C)
Increased levels are seen in poorly controlled diabetics. As glucose attached to red cells for 120 days, a test to measure hemoglobin A1C shows what the person's average blood glucose level was for that period of time.
Body absorbs too much iron.
An operation to remove hemorrhoids.
Engorged blood vessels in and around the anus and lower rectum occurs usually with constipation.
relating to bleeding
Hepatic Encephalopathy
A condition that may cause loss of consciousness and coma. It is usually the result of advanced liver disease. Also called hepatic coma.
Irritation of the liver that sometimes causes permanent damage. Hepatitis may be caused by viruses , medicines or alcohol.
Damage to liver
The part of an internal organ that pushes through an opening in the organ's wall.
An operation to repair a hernia.
Hiatal Hernia (Hiatus Hernia)
A small opening in the diaphragm that allows the upper part of the stomach to move up into the chest.
High Blood Pressure
When the blood flows through the vessels at a greater than normal force. Also called hypertension.
Hirschsprung's Disease
A birth defect in which some nerve cells are lacking in the large intestine. The intestine cannot move stool through, so the intestine gets blocked. Causes the abdomen to swell.
When the body is working as it should because all of its systems are in balance.
a plant or animal harboring another organism.
Excess bilirubin in the blood resulting in jaundice.
Too high a level of glucose (sugar) in the blood.
a disease resulting in the abnormal growth of the corneous layer of the skin
Incrased level of fats (lipids) in the blood.
abnormally increased pigmentation
an abnormal increase in the number of normal cells in a tissue
Blood pressure that is above the normal range. See also: High blood pressure.
Decreased level of glucose (sugar) in the blood.
Decreased gonad (sex gland) function.
Low blood pressure or a sudden drop in blood pressure.
an area of the forebrain which regulates pituitary gland and other functions.
Decreased oxygen content in arterial blood