Anagen Effluvium

What is Anagen Effluvium?

Anagen effluvium occurs after any insult to the hair follicle that impairs its cellular-level mitotic or metabolic activity. This hair loss is commonly associated with chemotherapy. Since chemotherapy targets rapidly dividing cancer cells, your body’s other rapidly dividing cells — such as hair follicles in the growing (anagen) phase — are also greatly affected. Soon after chemotherapy begins, approximately 90% or more of hairs in the anagen phase can fall out. The characteristic finding in anagen effluvium is the tapered fracture of the hair shafts. The hair shaft narrows as a result of damage to the matrix. Eventually, the shaft fractures at the site of narrowing and causes the loss of hair.

WebMD Medical Reference from the American Hair Loss Association

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