Chapter 24 Nail Diseases and Disorders

Beau's Lines

Visible depressions running across the width of the natural nail plate.

Bruised Nails

Condition in which a blood clot forms under the nail plate, forming a dark purplish spot, usually due to injury.

Corrugations

Wavy ridges caused by uneven nail growth; usually result of illness or injury.

Eggshell Nails

Noticeably thin, white nail plate that is more flexible than normal.

Furrows

Depressions in the nail that run either lengthwise or across the nail; result from illness,injury,stress or pregnancy.

Hangnail/Agnail

Condition in which the eponychium or other living tissue surrounding the nail plate becomes split or torn.

Infected Finger

Redness, pain, swelling, or pus; refer to physician.

Leukonychia Spots

Whitish discoloration of the nails, usually caused by injury to the matrix area; white spots.

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 Psoriasis

Condition that affects the surface of the natural nail plate, causing it to appear rough and pitted, as well as causing reddish spots on the nail bed and onycholysis.

Nail Pterygium

Abnormal conditions that occurs when the skin is stretched by the nail plate; usually caused by serious injury or allergic reaction.

Onychatrophia

Atrophy or wasting away of the nail; caused by injury or disease.

Onychauxis (hypertrophy)

Overgrowth in thickness of the nail; caused by local infection, internal imbalance, or may be hereditary.

Onychia

Inflammation of the nail matrix with shredding of the nail.

Onychocryptosis

Ingrown nails.

Onychogryposis

Thickening and increased curvature of the nail.

Onycholysis

Loosening of the nail without shedding.

Onychomadesis

The separation and falling off of a nail from the nail bed; can occur on fingernails and toenails.

Onychomycosis

Fungal infection of the natural nail plate.

Onychophagy

Bitten nails

Onychophosis

Growth of horny epithelium in the nail bed.

Onychoptosis

Periodic shedding of one or more nails.

Onychorrhexis

Spit 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 around the nail; pus, thickening and brownish discoloration of the nail plate.

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.

Pterygium

Forward growth of the cuticle.

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.

Tile-Shaped Nails

Increased crosswise curvature throughout the nail plate.

Tinea Pedis

Medical term for fungal infections of the feet.

Tinea (ringworm)

Reddened patches of small blisters; slight or severe itching.

Tinea Unguium

Whitish patches on the nail that can be scraped off or long yellowish streaks within the nail substance.

Trumpet Nails (pincer nails)

Edges of the nail plate curl around to form the shape of a trumpet or cone around the free edge.

Beau's Lines

Visible depressions running across the width of the natural nail plate.

Bruised Nails

Condition in which a blood clot forms under the nail plate, forming a dark purplish spot, usually due to injury.

Corrugations

Wavy ridges caused by uneven nail growth; usually result of illness or injury.

Eggshell Nails

Noticeably thin, white nail plate that is more flexible than normal.

Furrows

Depressions in the nail that run either lengthwise or across the nail; result from illness,injury,stress or pregnancy.

Hangnail/Agnail

Condition in which the eponychium or other living tissue surrounding the nail plate becomes split or torn.

Infected Finger

Redness, pain, swelling, or pus; refer to physician.

Leukonychia Spots

Whitish discoloration of the nails, usually caused by injury to the matrix area; white spots.

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 Psoriasis

Condition that affects the surface of the natural nail plate, causing it to appear rough and pitted, as well as causing reddish spots on the nail bed and onycholysis.

Nail Pterygium

Abnormal conditions that occurs when the skin is stretched by the nail plate; usually caused by serious injury or allergic reaction.

Onychatrophia

Atrophy or wasting away of the nail; caused by injury or disease.

Onychauxis (hypertrophy)

Overgrowth in thickness of the nail; caused by local infection, internal imbalance, or may be hereditary.

Onychia

Inflammation of the nail matrix with shredding of the nail.

Onychocryptosis

Ingrown nails.

Onychogryposis

Thickening and increased curvature of the nail.

Onycholysis

Loosening of the nail without shedding.

Onychomadesis

The separation and falling off of a nail from the nail bed; can occur on fingernails and toenails.

Onychomycosis

Fungal infection of the natural nail plate.

Onychophagy

Bitten nails

Onychophosis

Growth of horny epithelium in the nail bed.

Onychoptosis

Periodic shedding of one or more nails.

Onychorrhexis

Spit 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 around the nail; pus, thickening and brownish discoloration of the nail plate.

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.

Pterygium

Forward growth of the cuticle.

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.

Tile-Shaped Nails

Increased crosswise curvature throughout the nail plate.

Tinea Pedis

Medical term for fungal infections of the feet.

Tinea (ringworm)

Reddened patches of small blisters; slight or severe itching.

Tinea Unguium

Whitish patches on the nail that can be scraped off or long yellowish streaks within the nail substance.

Trumpet Nails (pincer nails)

Edges of the nail plate curl around to form the shape of a trumpet or cone around the free edge.