Telogen effluvium
Telogen effluvium
Classification & external resources
| ICD-10 |
L65.0 |
| ICD-9 |
704.02 |
| DiseasesDB |
12926 |
| eMedicine |
derm/416 |
Telogen effluvium is characterized by sudden, diffuse hair loss caused by an interruption in the normal hair growth cycle.
Causes
This interruption is often the result of trauma, such as chemotherapy, childbirth, puberty, major surgery, severe stress, and severe chronic illness. This trauma causes large numbers of hair follicles to enter a stage of telogen, or rest, simultaneously. After roughly 3 months of the telogen cycle the follicles will enter the anagen cycle, a stage of growth. The old hair will be forced out of the follicle by a new hair that is formed beneath it. This will cause a period of diffuse hair shedding. This condition is usually self correcting and can affect people of all ages.
Classification
There is also another form of telogen effluvium referred to as 'chronic'. This is essentially the same except it is on-going.[1]
Presentation in pregnancy
A typical example of telogen effluvium is seen after pregnancy. In this condition women lose a significant amount of hair a few months after delivery when the protective effect of estrogen is removed. This shedding usually stops spontaneously and these patients will re-grow hair after 3 months.
References
- ^ Telogen effluvium (hair shedding). DermNet NZ. Retrieved on 2007-12-03.
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Diseases of the skin and subcutaneous tissue (integumentary system) (L, 680-709) |
| Infections |
Staphylococcus (Staphylococcal scalded skin syndrome, Impetigo, Boil, Carbuncle) - Cellulitis (Paronychia) - Acute lymphadenitis - Pilonidal cyst - Corynebacterium (Erythrasma) |
| Bullous disorders |
Pemphigus - Pemphigoid (Bullous pemphigoid) - Dermatitis herpetiformis |
| 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 |
| Papulosquamous disorders |
Psoriasis (Psoriatic arthritis) - Parapsoriasis (Pityriasis lichenoides et varioliformis acuta, Pityriasis lichenoides chronica) - Pityriasis rosea - Lichen planus - Pityriasis rubra pilaris - Lichen nitidus |
| Urticaria and erythema |
Urticaria (Dermatographic urticaria, Cholinergic urticaria) - Erythema (Erythema multiforme, Stevens-Johnson syndrome, Toxic epidermal necrolysis, Erythema nodosum, Erythema annulare centrifugum, Erythema marginatum) |
| Radiation-related disorders |
Sunburn - Actinic keratosis - Polymorphous light eruption - Radiodermatitis - Erythema ab igne |
| 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) |
| 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 |
| see also congenital (Q80-Q84, 757) |
External links
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