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Telogen effluvium is a form of diffuse hair loss in which an unusually large number of hairs retreat into the so-called telogen phase – the resting phase of the hair cycle – at the same time. As a result, there is increased hair loss all over the head around two to three months after the triggering event. Unlike circular or scarring alopecia, this does not result in bald patches, but the hair becomes thinner and lighter overall.
There are many causes of telogen effluvium. Frequent triggers include severe physical or emotional stress such as infections, operations, hormonal changes or a lack of certain nutrients. Medication or psychological stress can also throw the hair cycle out of balance. The decisive factor here is not just the event itself, but the delayed effect: the body reacts by shifting many hair follicles into the resting phase, which only becomes noticeable weeks later in the form of increased hair loss.
Telogen effluvium is considered reversible, as the hair follicles are not permanently damaged. As soon as the cause is identified and rectified, the hair growth cycle usually stabilizes itself again. A balanced diet, targeted scalp care and, if necessary, the use of growth-promoting active ingredients can also support the regeneration process and gently stimulate hair growth.