Generally, hair growth after transplantation can take anywhere from 12-18 months. Doctor David L. Robbins tells us that "some patients see small growth as soon as 3-5 months, however, most will begin to see growth around the 6-7 month mark." [Read more]If you've had a hair transplant, we want to know how long it took for your hair to grow. Tell us by posting a comment below. If you haven't shared your story yet, click here to write a review -- we want to hear all about your hair transplant.