To understand how follicular units have affected hair transplant surgery practices, it is necessary to first understand what a follicular unit is. A follicular unit is a single entity that is made up of several parts. All these parts are necessary to the whole. The first part, and the one most people getting hair transplant surgery are interested in, is the hairs. Actually, there is a hair transplant procedure that keeps the scarring to one thin line. It consists of cutting the new thin donor strip immediately above the original scar. In most cases, the old scar is removed at the same time. When the wound is stitched up, the entire area of both the old scar and the new cut are sewn into one line. Just be sure that you do not bother the hair transplant site by scratching or rubbing it. Your hair transplant doctor will want you to come in for a check of your transplants about a week after your surgery. Be sure to be at that appointment on time. If you have any questions about how to care for your hair, bring them up at that time. The doctor will discuss where your hair transplant procedure will take place. She may even have a nurse or helper give you a tour of the facility. It will most likely be a doctor's clinic or an outpatient surgery center. You will be made to feel as comfortable as possible. Unless you are one of a very tiny group, you will not have to stay in the hospital overnight. It may seem odd, but once the grafted hairs are set, they are just as strong as the rest of your hair. You can cut them, comb and brush them, and even dye them in time. New hairs start to grow within three months. You will find you need haircuts more often, as your hair will grow about one or two centimeters per month. The results surgeons can get with the new areas of hair on a patient's previously balding areas are better than they have ever been before. It is amazing that this first started with a doctor who wanted to transplant hair to give people new eyebrows. Dr. Okuda of Japan was busy trying to transplant hair to the eyelashes and eyebrows of people who had lost them traumatically.