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Hair Loss Health Center

Hair Loss: Glossary

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Sebaceous Glands: Fatty glands found in hair follicles throughout the body that secrete an oil into the hair and surrounding skin.

Seborrheic Dermatitis: A condition marked by oily, scaly patches or spots on the skin. It frequently occurs on the face and scalp.

Sebum: An oily secretion manufactured by tiny sebaceous glands near the follicles that keeps hair lubricated and shiny.

Senescent Alopecia: The type of hair loss that naturally occurs with age, when both the duration of hair growth and the diameter of the hair follicle decrease.

Shock Fallout: The condition that occurs when hair transplantation is performed on men with a significant amount of naturally occurring hair left on their head. Trauma due to the procedure itself induces a telogen phase for much of the hair around the implanted grafts. Hair lost due to shock fallout returns in some cases.

Slit Graft: A graft of three to four hairs inserted into a slit rather than a round hole.

SOD: Also known as Superoxide Dismutase, enzymes that destroy superoxide free radicals and prevent the cellular damage that free radicals cause. Researchers have discovered that SODases also stimulate hair growth and decrease hair loss.

Sprionolactone: A diuretic drug that acts as an antiandrogen. Used in the treatment of androgen related disorders such as female pattern baldness and hirsutism. Brand name: Aldactone.

Stretch Back: A condition that occurs after a scalp reduction procedure due to the elastic characteristic of the skin. The bald area that could not be eliminated totally during a scalp reduction increases in width during the months after the procedure, thus reducing the procedure's effectiveness.

Suture: Stitch.

Suture Implants: A method of attaching a hairpiece that involves sewing stitches in the scalp and securing the hairpiece to them.

Systemic Side Effects: Undesirable effects produced throughout the body. For example, some antiandrogens will cause decreased sex drive and breast enlargement in men.

Telogen: The resting phase of the hair cycle that usually lasts approximately three months.

Telogen Effluvium: The second most common form of hair loss (androgenetic alopecia is the first). A condition that causes an increased number of hairs to enter the telogen or resting phase. The additional shedding usually occurs in response to various stresses such as emotional trauma, post-pregnancy and illness, major surgery, and certain medications. Telogen effluvium can be delayed (occurring a few months after the stressful incident) or chronic (unresolved).

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