Bilateral PCN (Percutaneous Nephrostomy) is a minimally invasive procedure to drain urine from both kidneys when the ureters are severely blocked. Under ultrasound or fluoroscopic guidance, a fine needle is inserted into each kidney through a tiny skin puncture. Thin nephrostomy tubes are placed to divert urine into external bags, relieving pressure and reducing hydronephrosis. The procedure is done under local anesthesia with no major incision, offering quick symptom relief. It protects kidney function, controls infection, and is often a crucial intervention in acute obstruction.