Under normal circumstances once a hair has been through the resting stage and fallen out, how long does it take for a new hair to emerge through the scalp. Thanks
You should be aware of the various hair cycles, as follows:
- Growth phase (Anagen phase) — lasts anywhere from 2-6 years. This is the phase where your hair is actively growing at approximately 10cm per year. 85% of hair is at this phase at any given time.
- Transitional phase (Catagen phase) — lasts about 2 weeks. This is the phase where the hair follicle shrinks and prepares to enter the resting phase.
- Resting phase (Telogen phase) — lasts about 1-6 months. This is the phase where hair does not grow but stays attached to the follicle. Some hairs are shed at this phase, but at the end the hair follicle re-enters the growth phase to start the cycle over again. 10-15% of hairs are at this phase at any given time.
Freshly transplanted hair will emerge from the scalp anytime within 6 months of the time that it is transplanted. In about 5% of patients, hair growth is immediate, but largely the hair takes about 3-5 months to start growing at about 1/2 inch per month.
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