The general rule in regard to new growth is that 70% of results are expected at 7 months post-op and 80% at 8 months post-op. After the hair transplant session, the hair follicles are considered to be in a dormant phase from two weeks to 6 months in some cases. Patients can become very anxious during this period as the unnoticeable new growth gradually appears. Some patients will experience growth of a percentage of the transplanted scalp hair without shedding. Hair can actually continue to sprout up even at the 24 month time frame. After scalp hair begins to grow, they will grow at a rate of approximately 1 centimeter per month. Because hair grows at different rates, the new hair growth may be delayed in some cases.
Attached is a collage of a patient who had 3000 grafts transferred to the frontal third and crown. You may be able to see how time affects the transplanted scalp hair. The hair grows in thickness and in length. At two weeks post-op, the scabs begin to fall and shedding of these hairs occurs. At two months post-op, some patients will even experience shock loss which is the shedding of pre-existing hairs. Shock loss is usually temporary as the hairs are traumatized. The traumatized hairs usually re-grow at the 4 month period. At three to eight months post-op, the transplanted hairs begin to grow and may continue to grow from 12 to 24 months.
My advice is not medical advice.
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