From Wikipedia, the free encyclopedia
Alopecia is the loss of hair on the body. It should be distinguished from baldness, which is the lack of hair, including contexts where that absence is intentional. (In some cases the terms are used interchangeably, and in some conditions such as trichotillomania, where the loss of the hair is due to intentional acts, but the motive for that act is defined as a medical condition, it can be difficult to determine whether the label "alopecia" is appropriate.)
In some cases, alopecia is an indication of an underlying medical concern, such as iron deficiency.[1]
Alopecia can also refer to the hair loss usually expected as part of the aging process (for example, androgenetic alopecia).
When the hair loss is in a defined part of the body, is is known as alopecia areata. By contrast, the hair loss associated with chemotherapy affects the entire body.[2]
Pierluigi Collina and Gail Porter are two well-known people who recently brought alopecia into public attention.
[edit] References
Alopecia Types - More information about alopecia and the various different types
[edit] See also
| Diseases of the skin and subcutaneous tissue (integumentary system) (L, 680-709) |
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| Infections | Staphylococcus (Staphylococcal scalded skin syndrome, Impetigo, Boil, Carbuncle) - Cellulitis (Paronychia) - Acute lymphadenitis - Pilonidal cyst - Corynebacterium (Erythrasma) |
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| Bullous disorders | Pemphigus - Pemphigoid (Bullous pemphigoid) - Dermatitis herpetiformis |
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| Dermatitis and eczema | Atopic dermatitis - Seborrhoeic dermatitis (Dandruff, Cradle cap) - Diaper rash - Urushiol-induced contact dermatitis - Contact dermatitis - Erythroderma - Lichen simplex chronicus - Prurigo nodularis - Itch - Pruritus ani - Nummular dermatitis - Dyshidrosis - Pityriasis alba |
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| Papulosquamous disorders | Psoriasis (Psoriatic arthritis) - Parapsoriasis (Pityriasis lichenoides et varioliformis acuta, Pityriasis lichenoides chronica) - Pityriasis rosea - Lichen planus - Pityriasis rubra pilaris - Lichen nitidus |
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| Urticaria and erythema | Urticaria (Dermatographic urticaria, Cholinergic urticaria) - Erythema (Erythema multiforme, Stevens-Johnson syndrome, Toxic epidermal necrolysis, Erythema nodosum, Erythema annulare centrifugum, Erythema marginatum) |
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| Radiation-related disorders | Sunburn - Actinic keratosis - Polymorphous light eruption - Radiodermatitis - Erythema ab igne |
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| Disorders of skin appendages | nail disease: Ingrown nail - Onychogryposis - Beau's lines - Yellow nail syndrome
hair loss: Alopecia areata (Alopecia totalis, Alopecia universalis, Ophiasis) - Androgenic alopecia - Telogen effluvium - Traction alopecia - Lichen planopilaris - Trichorrhexis nodosa
other follicular disorders: Hypertrichosis (Hirsutism) - Acne vulgaris - Rosacea (Perioral dermatitis, Rhinophyma) - follicular cysts (Epidermoid cyst, Sebaceous cyst, Steatocystoma multiplex) - Pseudofolliculitis barbae - Hidradenitis suppurativa
sweat disorders: eccrine (Miliaria, Anhidrosis) - apocrine (Body odor, Chromhidrosis, Fox-Fordyce disease) |
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| Other | pigmentation (Vitiligo, Melasma, Freckle, Café au lait spot, Lentigo/Liver spot) - Seborrheic keratosis - Acanthosis nigricans - Callus - Pyoderma gangrenosum - Bedsore - Keloid - Granuloma annulare - Necrobiosis lipoidica - Granuloma faciale - Lupus erythematosus - Morphea - Calcinosis cutis - Sclerodactyly - Ainhum - Livedoid vasculitis |
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| see also congenital (Q80-Q84, 757) |
