An RGU (Retrograde Urethrogram) is a specialized X-ray procedure used to evaluate the urethra, particularly in cases of urethral injury, stricture, blockage, or difficulty in urination. During this test, a contrast dye is gently introduced into the urethral opening, and X-ray images are taken as the dye outlines the urethral passage, allowing clear visualization of its structure and any abnormalities. The procedure helps identify narrowing, tears, diverticula, or other issues affecting urinary flow, making it essential for accurate diagnosis and planning appropriate treatment. It is commonly recommended for patients with a history of trauma, surgical complications, infections, or persistent urinary symptoms. The test is safe, minimally invasive, and typically completed within a short time, with real-time imaging ensuring precise evaluation. Proper preparation and guidance are provided before the procedure to ensure comfort and accurate results.