Which hair growth cycle phase are hairs prematurely forced into due to the physical stress of the surgery causing shock loss?

Answer

Telogen phase

The underlying mechanism of shock loss involves the surgical trauma disrupting the natural life cycle of the hair follicle, forcing it out of its active growing stage. Specifically, hairs existing in the anagen (growth) phase or the catagen (transition) phase are prematurely signaled to enter the telogen phase, which is the resting or shedding phase. This premature transition is what causes the visible loss of existing hair shafts, both from the transplanted grafts and the surrounding native hair, as the body temporarily prioritizes healing near the stressed scalp tissue over sustained growth for those specific hairs.

Which hair growth cycle phase are hairs prematurely forced into due to the physical stress of the surgery causing shock loss?

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