Background: The retrocaval ureter is a congenital abnormality in which the right ureter passes behind the inferior vena cava, leading to varying degrees of ureteral compression. Surgery is required for the treatment of the hydronephrosis or related symptoms. The video shows ‘‘step by step’’ a transperitoneal laparoscopic transection of a retrocaval ureter with transposition and reanastomosis. Methods: A 14 years-old girl presented to our institution with right lumbar pain and hydronephrosis. The CT showed a retrocaval ureter. We performed a transperitoneal laparoscopic transection of the retrocaval ureter with transposition and reanastomosis with 2 uninterrupted absorbable sutures (Vicryl 3.0). A mono-J ureteral stent (Contour VLTM Variable Length Percuflex, Boston Scientific) is placed just before starting the laparoscopic approach. Results: Operative time was 260 minutes, blood losses were negligible; on postoperative day 3 after a retrograde pyelography excluded contrast medium extravasation and the Contour stent was converted in a double J stent. Bladder catheter and the drain were respectively removed on postoperative day IV and V. The patient had no perioperative complications and was discharged on postoperative day IX. The ureteral stent was removed 28 days after surgery. The urography at 3 months showed regular patency of the anastomosis. Conclusion: The transperitoneal laparoscopic correction of the right retrocaval ureter is a feasible and minimally invasive.