This surgical procedure is an effective form of treatment for hair loss, as opposed to laser hair removal that can remove surplus hair. It originated as an early experimental procedure for male baldness more than 50 years ago and has developed into a popular form of treatment for hair loss; this has also been accompanied by other developments such as tattoo removal and others.
Basically it involves transplanting healthy, baldness-resistant follicles from the back of the head and grafting them onto those areas of the scalp (the top of the head) which are experiencing hair loss.

Hair loss such as particularly male pattern baldness involves the loss of hair, usually on a permanent basis from the top of the head, and at an older age this can be have the same effect as infertility. Hair is sometimes lost from the sides as well which leads to the characteristic ‘horseshoe’ pattern of hair seen in men.
It’s important to remember that the results of this surgery vary between individuals. If you have thick, curly hair then you will see a better and more natural result then someone with thin hair. This is because thick hair covers more of the scalp and so blends in better with your other hair.
This aesthetic aspect is something to bear in mind when considering this treatment.