Swollen Kidney With Fluid. There are various kidney diseases and conditions that would result to swelling of the kidneys. Unilateral renal cystic disease is a rare disorder characterized by multiple cysts in just one kidney 2.

Sometimes kidney cancer enters the renal vein or causes a blood clot to form in the renal vein producing further swelling of the kidney. It happens when urine cannot drain out from the kidney to the bladder from a blockage or obstruction. Hydronephrosis is the swelling of a kidney due to a build up of urine.
Hydronephrosis swollen kidney is a result of urine build up within one or both kidneys making them swell and enlarged.
For example blood in the urine commonly occurs with a kidney infection urinary tract stone a blood clot in a major kidney blood vessel and kidney cancer. Fluid may accumulate in your abdominal cavity ascites and in your legs as a result of liver damage cirrhosis. Unilateral renal cystic disease is a rare disorder characterized by multiple cysts in just one kidney 2. Hydronephrosis is a condition that typically occurs when a kidney swells due to urine failing to properly drain from the kidney to the bladder.