Telogen Effluvium

Telogen effluvium is a condition of diffuse hair shedding that arises when a greater-than-normal number of hair follicles enter the shedding (telogen) phase. It is usually noticed as increased shedding during combing and washing rather than as obvious thinning. That said, if telogen effluvium persists — that is, becomes chronic — thinning of the hair can develop over time.

High fevers, surgery, childbirth, iron and vitamin deficiencies, thyroid disease, rapid weight loss, certain medications, intense stress and hormonal changes are among the most common causes of telogen effluvium. Sometimes several factors act at the same time.

The basis of treatment is identifying the cause of the hair loss and removing it as far as possible. Detailed history, clinical examination, laboratory investigations and, where needed, hair analysis therefore play an important role in diagnosis.

Telogen effluvium often tends to resolve on its own once the underlying cause is corrected. In some patients, however, medical treatments and supportive procedures may also be used to bring the shedding under control and help the hair grow stronger again.