<prompt> Operation for undescended testis should be done at at what age in years?11 to 22 to 35  <response>: Ans. b 1-2 years. Ref. Bailey and Love 25th76; Nelson, Paediatrics, 17thpg. 1817S No.ProcedureAge for elective surgery1.Cleft lip6-12 weeks MH 20062.Cleft palate1-1.5 years3.Umbilical herniaAfter 1 year of age, if required.4.Inguinal herniaAny age5.Congenital hydrocele HerniotomyAfter one year AIIMS-2001 June6.Undescended testisWithin 2 years of age MH -20007.Hypospadias not glandular1-1.5 years8.Patent ductus arteriosusAt birth9.Coarctation of aorta3-4 years Anundescendedectopic testis is prone for: 3 Ts- Trauma, Tumor and Torsion Operating on very small children needs high skills in patients with undesended testis. So orchidopexy is not usually done before 2 years. However before the boy starts for school, he can be operated, but best is to wait till he is dry to avoid wound infection. It is to operate on same side at a time. Seeing the complications related to the condition. 9-15 months is suggested as the best time for operation. Spermatic venography is usefully employed in location of undescended testis if this is not identified using cross - sectional imaging CT is the best investigation for localization of non-palpable undescendedectopic testis Laparoscopy-the optimum method of visualizing the anatomy. 