Chest hair implantation takes healthy hair follicles from your own hair behind the ear, separates them under a microscope, extracts single hair follicles and cultivates them in follicle cultivation solution, and then plants the hair follicles uniformly under the skin according to the direction and density of the growth of body hair, so that it will grow new body hair again. Because chest hair implantation takes hair follicles from the occipital region of the body, these hair follicles are called “long-lived hairs” because they are not affected or constrained by the male receptor and basically will not fall off. Therefore, the hair follicles extracted from the back of the occipital area and planted in the required area will not easily fall off again and can grow normally as the original chest hair. However, after chest hair implantation, sometimes there are certain risks, as follows: 1. Infection: postoperative infection may occur in the chest hair implantation area due to improper cleaning of the transplanted hairs, once the infection occurs, it is recommended to go to the hospital for treatment immediately; 2. Post-operative discomfort: the chest hair implantation area may have a slight burning sensation, swelling and pain after the operation, but basically it can disappear on its own; 3. Unsatisfactory results: the chest hair implantation area The effect of chest hair implantation will be affected by the poor growth of hairs or the failure of hairs to survive; 4. Chest hair implantation localization may form scar, or varying degrees of hyperpigmentation; 5. Bleeding: due to the damage to the tiny blood vessels in the supply area or coagulation dysfunction; 6. Scarring in the hair supply area.