mal oblique muscle External oblique muscle tenaculum Between the seventh week and birth, the testes descend into the scrotum due to shortening of the gubernaculum. The testes pass through the inguinal canal in the anterior abdominal wall. After the th week, a peritoneal evagination, the processus vaginalis, forms just anterior to the gubernaculum It forms the inguinal canal by pushing out sock-like extensions of the transversalis fascia, the internal oblique muscle and external oblique muscle, The inguinal canal extends from the base of the inverted transversalis fascia(the deep ring) to the base of the everted external oblique muscle the superficial ring). After the processus vaginalis has evaginated into the scrotum, the gubernaculum shortens and pulls the gonads through the canal. The gonads always remain within the plane of the subserous fascia associated with the posterior wall of the processus vaginalis. By the end of the pregnancy the testes have completely entered the scrotal sac. The gubernaculum is reduced to a ligamentous band attaching the inferior pole of the testis to the scrotal floor. Within the first year after birth the superior part of the processus vaginalis is usually obliterated leaving a distal remnant sac, the tunica vaginalis, which lies anterior to the testis. Its lumen is normally collapsed but sometimes it may fill with serous secretions forming a testicular hydroceleBetween the seventh week and birth the testes descend into the scrotum due to shortening of the Between the seventh week and birth, the testes descend into the scrotum due to shortening of the gubernaculum. The testes pass through the inguinal canal in the anterior abdominal wall. After the 8th week, a peritoneal evagination, the processus vaginalis, forms just anterior to the gubernaculum. It forms the inguinal canal by pushing out sock-like extensions of the transversalis fascia, the internal oblique muscle and external oblique muscle The inguinal canal extends from the base of internal oblique muscle and external oblique muscle, The inguinal canal extends from the base of the inverted transversalis fascia (the deep ring) to the base of the everted external oblique muscle (the superficial ring). After the processus vaginalis has evaginated into the scrotum, the gubernaculum shortens and pulls the gonads through the canal. The gonads always remain within the plane of the subserous fascia associated with the posterior wall of the processus vaginalis By the plane of the subserous fascia associated with the posterior wall of the processus vaginalis. By the end of the pregnancy the testes have completely entered the scrotal sac. The gubernaculum is reduced to a ligamentous band attaching the inferior pole of the testis to the scrotal floor. Within the first year after birth the superior part of the processus vaginalis is usually obliterated leaving a distal remnant sac the tunica vaginalis which lies anterior to the testis Its lumen is normally collapsed remnant sac, the tunica vaginalis, which lies anterior to the testis. Its lumen is normally collapsed but sometimes it may fill with serous secretions forming a testicular hydrocele[1]