Hair loss during growth period

Introduction to hair loss during growth Growth period hair loss (anageneffluvium) is caused by many toxic chemicals and physical factors in the growth period hair follicles, affecting the formation of hair matrix, resulting in diffuse massive hair loss. basic knowledge Sickness ratio: 0.1% Susceptible people: no special people Mode of infection: non-infectious complication:

Growth period

(1) Causes of the disease

Drugs used to treat tumors such as antimetabolite alkylating agents and mitotic inhibitors most often cause hair loss during the growing season, and other factors such as mercury, strontium, boric acid, radiotherapy, severe protein malnutrition can cause the disease, arsenic is not Causes hair loss, but can be concentrated in the hair.

(two) pathogenesis

Along with the degree of toxicity of the causative agent and the periodic state of the hair follicle, many toxic chemicals and physical factors act on the hair follicles in the growth phase, affecting the formation of the hair matrix, and causing diffuse massive hair loss.

Growth prevention of hair loss

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Growth alopecia complications Complication

All substances that cause hair loss during the growth period can cause severe systemic poisoning or even death in excess.

Hair loss symptoms during growth Common symptoms Hair is pale and brown

It is related to the degree of toxicity of the pathogenic agent and the periodic state of the hair follicle. Most hair follicles can be affected during the growth period, resulting in acute exfoliation of 80% to 90% of the hair, often manifested as malnutrition, such as an exclamation point hair, this hair It is brittle and easy to fold, easy to fall off early. The latency of such hair loss is shorter than that during rest period. About 1 to 2 weeks, all substances that can cause hair loss during the growth period can cause severe systemic poisoning or even death. Often accompanied by other systemic symptoms, after termination or removal of triggering factors, most of the growth period hair loss can be fully restored, and extensive dermal lesions caused by high dose radiation are not easy to recover.

Growth alopecia examination

Skin biopsy or toxicological examination.

Histopathology: Transverse sections showed increased hair follicles or inflammatory changes during the resting period.

Diagnosis of hair loss during growth period

Ask your medical history in detail, look for clues to the disease, conduct a full physical examination, find other symptoms that accompany you, perform laboratory tests, skin biopsy or toxicology tests if necessary.

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