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COS CH10
| Term | Definition |
|---|---|
| Beau's 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 Nail Beds | Condition in which a blood clot forms under the nail plate |
| Discolored Nails | Nails turn a variety of colors; may indicate surface staining |
| Eggshell nails | Noticeably thin |
| 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 |
| Melanonychia | Darkening of the fingernails or toenails; may be seen as a black band within the nail plate |
| 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 pts or severe roughness on the surface of the nail plate. |
| Nail pterygium | Abnormal condition that occurs when the skin is stretched by the nail plate; usually caused by serious injury |
| Onychia | Inflammation of the nail matrix |
| Onychocryptosis | Also known as ingrown nails; nail grows into the sides of the tissue around the nail. |
| Onycholysis | Lifting of the nail plate from the nail bed without shedding |
| Onychonadesis | The separation and falling off of a nail plate from the nail bed; affects fingernails and toenails. |
| Onychonycosis | Fungal infection of the natural nail plate. |
| 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 have a series of lengthwise ridges giving a rough appearance to the surface of the nail plate. |
| Onychosis | Any deformity or disease of the natural nails. |
| Paronychia | Bacterial inflammation of the tissues surrounding the nail causing pus |
| 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 | Also known as folded nail; a type of highly curved nail usually caused by injury to the matrix |
| Pseudomonas aeruginseosa | One of several common bacterial 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 through the length of the natural nail plate that are caused by uneven growth of the nail |
| Splinter hemorrhages | Hemorrhages caused by trauma or injury to the nail bed that damage the capillaries and allow small amounts of blood flow. |
| Tinea pedis | Medical term for fungal infections of the feet; red |
| Blue Fingernails | Sometimes called furrows (FUR-ohs) or corrugations (kor-uh-GAY-shuns); visible depressions running across the width of the natural nail plate; usually a result of major illness or injury that has traumatized the body. |
| koilonychia | Soft spoon nails with a concave shape that appear scooped out. |
| onychauxis | Thickening of nails. |
| onychogryposis | Also known as ram's horn or claw nails; an enlargement of the fingernails or toenails accompanied by increased thickening and curvature. |