Abstract: The study aim to assessment the effectiveness of pinhole castration in bucks. Fifteen male kids of black local breed goat 4 months old were utilized. One testis (right) of each animal was castrated by pinhole castration technique (ligation of the spermatic cord at the neck of scrotum through a hypodermic needle while the knot burred subcutaneously) after injection of 2 mL lidocaine. The left testis left uncastrated as control. Close clinical observations of animals immediately and through 1 month were done to investigate the presence of pain and complications. All animals were subjected to bilateral orchiectomy after 1 month, to evaluate the viability of the testicular tissue macroscopically and Histological examinations. The result reveals that the technique was quick and takes short time to perform with less discomfort after operation. The ligated testis seen smaller than control with no pain during palpation. After orchiectomy the ligated testis characterized by firm texture with the adhesions between its tunica and show significantly p<0.05 decrease in length and girth. Histologically, massive destruction of the cellular tissue was seen with the complete hyalinization of the semniferous tubules with no signs of spermatogenesis. The interstitial tissue replaced by thick layer of fibrous tissue with no Ledge cells. In conclusion, researchers approve to use this technique of castration in bucks since, it was simple, easy to perform, economic and it can be used in the field when the conventional tools of castration not available.