A new technique of the vasoligation without incision has been devised. The procedure was carried out by piercing through the scrotum with a threaded sewing machine needle (14 G) . The ligature looped around the vas within the scrotum by moving the needle back and forth with the help of an injection needle (8 G). The ligation was finally made after the ras had been seized and crushed from the outside with a crushing clamp. The above procedure was carried out in 20 dogs in a period of 1.5 years and the rate of occlusion of the vas was 1)7.37%. As compared with other vasoligation methods

this technique is claimed to be much simpler

safer and less traumatic

and considered feasible in male sterilization.The succes of the animal experiment would be the cornerstone for clinical trial in the near future