What phase does scalp trauma prematurely push mature hairs into during the phenomenon known as shock loss?

Answer

The resting, or telogen, phase

Shock loss is fundamentally caused by trauma inflicted upon the scalp during the hair transplant operation. This trauma disrupts the natural hair growth cycle, forcing hairs that are currently mature and actively growing (in the anagen phase) to prematurely transition into the telogen phase, which is the natural resting stage. Once a hair enters telogen, it naturally detaches from the follicle and subsequently falls out. This premature push into dormancy is the core mechanism behind the visible shedding experienced by patients shortly after surgery, signaling a temporary biological interruption rather than permanent graft death.

What phase does scalp trauma prematurely push mature hairs into during the phenomenon known as shock loss?
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