Can hair follicles from another person be used for hair transplantation?

Hair transplantation is a method that addresses hair loss by extracting autologous hair follicles from the back or side of the occipital region and implanting them into the balding areas. Typically, hair transplant procedures use the patient's own healthy hair follicles because these follicles are immunologically compatible with the patient's body, avoiding rejection and ensuring the success rate and effectiveness of the hair transplant. However, it is possible to use hair follicles from another person, which is referred to as allogeneic hair follicle transplantation, although this approach carries significant risks.

If hair follicles from another individual are used in transplantation, the recipient's immune system will identify these foreign follicles as antigens, triggering an immune rejection response. This reaction can prevent the transplanted follicles from surviving, resulting in failure of the hair transplant. Furthermore, using hair follicles from another person may also pose health risks, such as disease transmission.

To ensure the safety and effectiveness of hair transplantation, patients should choose to use their own hair follicles for grafting. Prior to the procedure, doctors will conduct a comprehensive evaluation of the patient's hair condition and overall health to determine the most suitable hair transplant plan. Additionally, patients should choose reputable medical institutions to perform the surgery to ensure its professionalism and safety.