Application of laser in male birth control

This paper describes the animal experiment and clinical application of different kinds of lasers affecting respectively deferent duct or testis.It showed that laser could produce a series of biological effects and achieve male birth control.And the result was reliable and the operation was simple.Thus the author considers that vas deferens,if irradiated with argon-laser which is conducted by the optical fibre,will be coagulated by the fibre spots,which can’t influence the peripheral tissues of vas deferens and such side-effects as adhesion and oedema will greatly decrease.