After your hair follicles are inserted, the shock of the surgery will cause them to fall out within about 10 days of the transplantation procedure in a process called telogen effluvium. During this process, the hairs are in their restive telogen state. Within 3-6 months, the follicles will come out of their restive telogen state and into their anagen growing state which is when your newly transplanted hairs should begin to grow.