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Nail Disorders
Cosmetology
| Term | Definition |
|---|---|
| Beaus' Lines | visible depressions running across the width of the natural nail plate; usually a result of major illness or injury that has traumatized the body |
| Bruised nails | condition in which a blood clot forms under the nail plate, causing a dark purplish spot. these discolorations are usually due to small injuries to the nail bed |
| discolored nails | Nails turn a variety of colors; may indicate surface staining, a systemic disorder, or poor blood circulation. |
| eggshell nails | Noticeably thin, white nail plate that is more flexible than normal. |
| hangnail | Also known as agnail; a condition in which the living tissue surrounding the nail plate splits or tears. |
| leukonychia spots | Also known as white spots; whitish discolorations of the nails, usually caused by injury to the matrix area; not related to the body's health or vitamin deficiencies. |
| melanonychia | Darkening of the fingernails or toenails; may be seen as a black band under or within the nail plate, extending from the base to the free edge. |
| nail disorder | Condition caused by an injury or disease of the nail unit. |
| nail psoriasis | A noninfectious condition that affects the surface of the natural nail plate causing tiny pits or severe roughness on the surface of the nail plate. |
| nail pterygium | Abnormal conditions that occurs when the skin is streched by the nail plate; usually caused by serious injury or allergic reaction. |
| onychia | inflammation of the matrix of the nail with formation of pus and shedding of the nail |
| onychocryptosis | ingrown nails, nail grows into the sides of the tissue around the nail |
| onycholysis | the loosening of the nail without shedding, usually beginning at the free edge and continuing to the lunula |
| onychomadesis | the separation and falling off of a nail from the nail bed; can occur on fingernails and toenails |
| onychomycosis | fungal infection of a nail |
| onychophagy | Also known as bitten nails; result of a habit of chewing the nail or chewing the hardened skin surrounding the nail plate. |
| onychorrhexis | split or brittle nails that also have a series of lengthwise ridges giving a rough appearance to the surface of the nail plate |
| onychosis | Any deformity disease of the natural nails. |
| paronychia | bacterial inflammation of the tissues surrounding the nail; pus is usually present also a gradual thickening and brownish discoloration of the nail plate |
| pincer nail | Also known as trumpet nail; increased crosswise curvature throughout the nail plate caused by an increased curvature of the matrix. The edges of the nail plate may curl around to form the shape of a trumpet or sharp cone at the free edge. |
| plicatured nail | A type of highly curved nail plate often caused by injury to the matrix, but may be inherited; also called "folded nail". |
| Pseudomonas Aeruginosa | one of several common bacteria that can cause nail infection |
| pyogenic granuloma | severe inflammation of the nail in which a lump of red tissue grows up from the nail bed to the nail plate |
| ridges | Vertical lines running the length of the natural nail plate, usually related to normal aging. |
| splinter hemorrhages | caused by physical trauma or injury to the nail bed that damages the capillaries and allows small amounts of blood to flow |
| tinea pedis | a fungal infection that commonly develops between the toes and on the feet |