What are possible side effects after a hair transplant?

Possible side effects include: (1) swelling of the forehead, which eventually disappears on its own after a few days; (2) temporary in-grown hairs, which can appear a few weeks after the surgery but are not permanent; and (3) shock loss — temporary hair loss of otherwise healthy hair in the donor and recipient regions. This happens in approximately 15% of patients, though using minoxidil for several weeks prior to your procedure can reduce the chance of it occurring by 50%.