Excessive drinking may be a problem due to anesthesia and medications you have to take in the course of having your hair transplant done, so you may be asked to refrain from drinking until your head has healed. You may even be told whether or not to take certain vitamins and medications. The doctor will discuss where your hair transplant procedure will take place. You most likely cannot wait to see the faces on your friends and acquaintances when they notice your new full head of hair. In the meantime, you have to go through the surgery and take care so that your hair transplant will be successful. Your hair transplant will not heal unless you keep the newly operated-on skin out of the sunlight. The surgical team takes care to get every hair transplant graft into the receptor sites as they have been laid out. They waste no time, though, because the small grafts are vulnerable when their follicles are outside of the skin. The goal is to get the grafts in as quickly as possible while staying true to the design. 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. Based on the fact that the average Caucasian male has a density of 2 hairs per millimeter, it can be assumed that the average density of hair is 1250 hairs per square inch. The unit is set off by a band of collagen that holds it together. If you look under a microscope at a scalp, you can see follicular units growing in just this way. The idea of bringing this information into hair transplant procedures led to innovative surgical methods. Rather than just moving around individual hair follicles, surgeons actually moved a unit which contained everything the hair needed to keep growing. He will want to know the basics of your lifestyle as they relate to your health and hair. The doctor will also want to know what you think will change when you have your hair transplant. If your expectations are too high, you may be referred to counseling before a reputable doctor will perform a hair transplant.