Hair transplant depending on the patient’s Norwood Class pattern of hair loss. One can roughly know the required number of follicular units (with type or stage of alopecia in Norwood classification) to get good results with hair transplants. The below chart shows the different classes in the Norwood Classification system of hair loss, and we will use these to provide a general guideline for the number of follicular unit grafts needed in a first hair transplant procedure.
