<prompt> In a case of undescended testis, After what age fuher descent doesnot occur ?4 months6 months8 months12 months  <response>: .UNDESCENDED TESTIS It results from arrest of descent of the testis in some pa along its pathway to the scrotum. Bilateral undescended testis is called cryptorchidism means hidden testis. Up to the age of six, microscopic changes are uncommon. After that, testis gradually atrophies, reduces its external as well as internal secretory activity. Eventually, grossly immature epithelial elements with irreversible destructive changes of the germinal epithelium occur. ref:SRBs manual of surgery,ed 5,pg no 1079 