What are the Reasons for Shock Hair Loss After Hair Transplant? Hair has a lifecycle which are anagen, catagen, and telogen phases.
The anagen phase is the growing phase of the hair, and it lasts about three years in total.
Catagen phase is the cessation, a pausing phase. In this transition phase, the hair does not grow, and the hair detaches slowly from the hair bulb. It lasts about one month.
Telogen phase marks the shedding of the hair. The hair strands detach from their cells, and shed. This phase lasts about three months.
The transplanted hair start their new lifecycle in the catagen and telogen phases, or in other words the transition and shedding phases, and after a month of transition phase, a dormant phase they shed. This telogen phase lasts about three months, and the hair prepares for another round of anagen phase – the growing phase, and after three months, hair starts growing, and grows longer. The shock loss occurs because the transplanted hair start their lifecycle while in the dormant and shedding phases. It is therefore not a permanent type of hair loss. It is a natural and expected physiological phenomenon.