Even thinning may be a step towards hair loss if the remaining hair is losing density per square centimeter. The main point is to evaluate the cosmetic impact as it is related to the Coverage Value Index that I presented to to my colleagues in 2015. It relates to the caliber of the hair and the hair per square centimeter. Using this calculation, if your Coverage Value is less than 6, your overall appearance may be unsatisfactory for you.
If the hair caliber of your thinning area is less than than your original hair caliber, we can identify this process as miniaturization because the problem is not the number of follicles per square centimeter. In these cases, finasteride may help more than hair transplantation. This because hair transplantation may activate some hair loss.
If you are not "balding" you are not generally a candidate for surgery. Thinning hair is not a reason to have surgery.
I don't think that you are a candidate for HT .If you try to increase the number of hair to get a denser appearance result would be disaster for any any technique you choose: either you lost some bulk of hair because of trauma on your scalp or you would have no density difference (just time and money wasting).Thin hair is your genetic character just like your eye color and you cant change that .
You can transplant grafts to increase your density and hence reduce the amount of scalp you see. Hair transplantation is only a tool to populate areas with hair producing cells. If you naturally have very fine hair or low density, you can use hair transplantation to increase the coverage.
First it is important to look at the history of your miniaturization. If this is something that you have always had, and you do not have generalized miniaturizing pattern that would make your donor region less suitable for restoration, then you would have some options.
If there has been a slow progression to miniaturization, medications and preventative measures could make a difference.
If you have a donor region that is suitable for restoration, then absolutley you can use folliciels to reinforce densitites.
Thank you for your question. You may be a potential candidate for NeoGraft FUE Transplant. I suggest that you consult with a board certified facial plastic surgeon for a diagnosis.