This is a sophisticated question and needs a thorough understanding of more and less permanent zones. There's no zone that is totally permanent, there's no zone that is totally non-permanent and there's no distinction line between the two zones.

We don't instantly start losing hair, the initial stage is what we call the miniaturization phase and in this phase the hair becomes thinner. The hair is not immediately lost, the thickness of the hair is lost and thus the coverage is reduced.

'How many hairs or grafts do I need?' is a very sophisticated question and the reality beneath that question may be much more complicated than you think.

The answer to this question can be different from depending on which angle we look at. If we look at from a practical point of view any medical doctor that determine themselves as a hair restoration surgeon are a hair restoration surgeon. Since there are no training bodies at medical school that teaches how to do hair surgery and gives a certificate, any doctor that have self-trained or trained, they can call themselves hair surgeons.

Hair restoration surgery is used in order to restore hair at body parts that lack hair. This may be from various reasons, for instance it could naturally occur, some people have sparse beard or they may have sparse eyebrows, or just a naturally occurring high hair line.

A hair transplant consultation is the communication between the candidate patient and the doctor including the physical examination for hair loss, the diagnosis of the problem, the discussion on treatment options, pros and cons, and the education of the patient regarding the problem and the possible treatments. And finally, setting the patient’s expectations regarding those treatment options.