You will also need to reveal to the doctor if you have had any hair replacement surgery before. To get an idea of how you will react to having a hair transplant procedure done, the doctor will ask many questions. He will want to know the basics of your lifestyle as they relate to your health and hair. Burns, tattoos, and infections can cause the eyebrow hair to fall out, and some people just are not able to grow eyebrows at all. Hair transplant surgery for eyebrows is different because eyebrows are different from scalp hair. For one thing, the hair has a distinct growth pattern with each section of the eyebrow pointing in a different direction. How Hair Is Inserted in Hair Transplant Surgery Hair transplant surgery begins, after anesthesia is applied, with removing donor tissue. Follicular units are then extracted from the tissue using a stereomicroscope. This is all done by skilled nurses and technicians. The insertion of the hair into the receptor sites comes later. You will be told to quit smoking, at least until after you have healed from the surgery, if you are a smoker before the hair transplant procedure. This is important because smoking makes you heal slower by inhibiting blood from flowing to your skin. It may be hard to do, but if you quit smoking just for the surgery, it might not be so hard. You should figure that the average number of hair transplant grafts needed to cover a balding area is 25% of the original hair that was there. You can move up or down from this figure according to your other factors such as thickness, curliness, or color. Then, you can use this number to figure up the grafts needed. Be aware that not all hair transplant doctors are scrupulous businesspeople. Many will try to fool you into believing they are more experienced than they are. Sometimes, they will try to make you believe they do better work than they do. They will show you pictures that are not true examples of their own work.