Fractional Photothermolysis Laser Treatment of Male Pattern Hair Loss

This document reports on a study investigating the use of fractional photothermolysis laser treatment for male pattern hair loss (MPHL). The study involved using a fractional 1,550-nm laser to induce microcoagulative wounds in the dermis, which can penetrate the hairy scalp more efficiently than other laser systems. The study found that the laser treatment induced considerable hair stimulation and promoted anagen hair growth, although no significant changes in hair caliber were observed. Proper energy levels and densities were necessary for effective stimulation of hair growth, and a low-energy, high-density protocol for treatments at a 2-week interval was found to be the most suitable protocol for the treatment of MPHL. The study suggests that fractional photothermolysis laser treatment may be a potential treatment option for MPHL, although further studies are needed to confirm its mechanism and role, and to evaluate the stability and effects of laser therapy through additional testing and long-term tracking and observation of participants.