There is no such thing as the fastest way to get rid of fluid in the kidneys. The fastest way to get rid of renal fluid is to treat the cause of obstruction such as stones by lithotripsy or catheterization, as well as to perform nephrostomy and drainage or even surgical removal of non-functioning kidneys in critical and serious conditions.
The main causes of renal effusion are ureteral stones, prostate hypertrophy, tumors or trauma, etc. As long as the obstruction can be relieved in time, the renal effusion can be discharged quickly, for example, extracorporeal shock wave lithotripsy or ureteroscopy lithotripsy for ureteral stones, and catheterization or surgical treatment for obstruction caused by prostate hypertrophy.
If you can not quickly find and release the obstruction factors, in severe cases to quickly discharge the hydronephrosis need other invasive treatment to actively drain the fluid, such as percutaneous nephrostomy or placing a stent in the ureter, when the hydronephrosis or other causes of renal function has been seriously impaired, even if the drainage can not alleviate the condition, it is necessary to remove the non-functioning kidney.
It is recommended that patients with hydronephrosis should seek timely medical treatment and improve the ultrasound examination and other auxiliary examinations for early treatment.