Hair loss, a frustrating physiological change, is plaguing more and more people. According to outpatient clinics at medical institutions, the proportion of hair loss among young adults aged around 30 years old is gradually increasing due to changes in lifestyle. In modern society, where quality of life and beauty are important, hair loss does not directly affect physical health, but brings many troubles to patients in social, work and life. Fortunately, with the development of medical technology, the use of hair transplantation to treat hair loss is gradually becoming more and more accepted. At present, hair transplantation is the best means to eradicate hair loss. Currently, the most advanced hair transplantation method is the scarless FUE hair transplantation technique. This technique uses a precise single follicular unit hair extraction instrument to obtain high-quality hairs with the aid of an optical magnification system, and no scar remains in the donor area after hair extraction. The obtained hairs are processed and transplanted to the balding area through a minimally invasive technique, also without scarring in the hair transplant area. This technique allows the hair loss area to grow back healthy and new hair in the shortest possible time; in addition, the surgeon can also customize the hair transplantation procedure according to each patient’s face shape in order to make the new hair more suitable for the patient’s needs, so that the patient can be satisfied both physically and psychologically. The hair survival rate and the results of hair transplantation are also directly related to the clinical skills and the degree of delicacy of the physician, as poor techniques not only fail to achieve the treatment purpose, but also waste precious hair donor areas. Therefore, patients who need hair transplantation should go to regular hospitals and seek treatment from physicians with rich clinical experience in order to achieve safe and ideal hair transplantation results. In addition, scarless FUE hair transplantation technology has a wide range of applications, in addition to the treatment of various causes of baldness, it can also be applied to eyebrow eyelash implantation, post-wrinkle surgery scar baldness, androgenic baldness, hairline reshaping, beauty tip reconstruction, female pubic hair implantation, male beard chest hair implantation, and localized skin vitiligo treatment.