Hair Loss Glossary of Terms

The following are health and medical definitions of terms that appear in the Hair Loss article.

Aging: The process of becoming older, a process that is genetically determined and environ...

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Alopecia: Baldness. There are many types of alopecia, each with a different cause. Alopec...

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Alopecia areata: Patchy baldness that typically begins with rapid hair loss on discrete ar...

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Androgenic: Pertaining to the development of male characteristics, including body hair, th...

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Autoimmune: Pertaining to autoimmunity, a misdirected immune response that occurs when the...

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Autoimmune disease: An illness that occurs when the body tissues are attacked by its own i...

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Baldness: Medically known as alopecia. There are many types of baldness, each with a diff...

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Biopsy: The removal of a sample of tissue for examination under a microscope to check for ...

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Breathing: The process of respiration, during which air is inhaled into the lungs through ...

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Constipation: Infrequent and frequently incomplete bowel movements. Constipation is the op...

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Diagnosis: 1 The nature of a disease; the identification of an illness. 2 A ...

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Diarrhea: A common condition that involves unusually frequent and liquid bowel movements. ...

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Enzyme: A protein (or protein-based molecule) that speeds up a chemical reaction in a livi...

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Exogenous: Originating from outside the organism. Insulin taken by a diabetic is exogenous...

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Fever: Although a fever technically is any body temperature above the normal of 98.6 degr...

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Frontal: In anatomy, pertaining to the forehead. As, for example, the frontal bone, fronta...

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Fungal: Pertaining to a fungus. For example, a fungal skin infection.

Genetic: Having to do with genes and genetic
information.

Hair follicle: A sac from which a hair grows and into which the sebaceous (oil) glands ope...

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Hair loss: Hair loss is the thinning of hair on the scalp. The medical term for hair loss ...

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Hormone: A chemical substance produced in the body that controls and regulates the activit...

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Kidney: One of a pair of organs located in the right and left side of the abdomen. The kid...

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Lichen planus: A common skin disease with small itchy pink or purple spots on the arms or ...

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Liver: The largest solid organ in the body, situated in the upper part of the abdomen on t...

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Lupus: A chronic inflammatory disease that is caused by autoimmunity. Patients with lupus ...

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Metabolism: The whole range of biochemical processes that occur within a living organism. ...

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Microscope: An optical instrument that augments the power of the eye to see small objects....

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Neurology: The medical specialty concerned with the diagnosis and treatment of disorders o...

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Nutrition: 1) The science or practice of taking in and utilizing foods. 2) A nourishing ...

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Pain: An unpleasant sensation that can range from mild, localized discomfort to agony. Pa...

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Pediatrics: The field of medicine that is concerned with the health of infants, children, ...

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Pharmacy: A location where prescription medications are sold. A pharmacy is constantly sup...

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Posterior: The back or behind, as opposed to the anterior.

Prognosis: The forecast of the probable outcome or course of a disease; the patient's chan...

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Progressive: Increasing in scope or severity, advancing, or going forward. For example, a ...

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Substance: 1. Material with particular features.
2. The material that...

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Surgery: The branch of medicine that employs operations in the treatment of disease or inj...

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Syphilis: A sexually transmitted disease caused by Treponema pallidum, a microscopic orga...

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Temple: The area just behind and to the side of the forehead and the eye, above the side o...

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Tension: 1) The pressure within a vessel, such as blood pressure: the pressure within t...

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Testosterone: A "male hormone" -- a sex hormone produced by the testes that encourages th...

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Thyroid: 1. The thyroid gland. Also, pertaining to the thyroid gland. 2. A p...

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Transplant: The grafting of a tissue from one place to another, just as in botany a bu...

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Trauma: A physical or emotional injury.

Warfarin: An anticoagulant drug (brand names: Coumarin, Panwarfin, Sofarin) taken to prev...

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Weight loss: Weight loss is a decrease in body weight resulting from either voluntary (die...

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Medical Dictionary