A nephrostomy is a medical procedure that involves creating an opening in the kidney to allow urine to drain directly from the kidney into a bag outside the body. This is often done when there is a blockage in the urinary tract, preventing urine from flowing normally. The procedure is typically performed under local anesthesia and involves placing a thin tube, called a nephrostomy tube, into the kidney. The nephrostomy tube helps relieve pressure and prevent damage to the kidney. It is usually a temporary solution until the underlying issue, such as a kidney stone or tumor, can be treated. Regular care and monitoring of the tube are essential to prevent infections and ensure proper function.