Is 10mm of fluid in the kidney serious?

Whether renal effusion of 10mm is serious or not needs to be judged according to the cause of the disease, if it is caused by urological tumor, it is more serious; if it is caused by stones, it is relatively not very serious.
Renal effusion refers to the obstruction of urine drainage from the renal pelvis, the accumulation of increased intrarenal pressure, dilatation of the renal pelvis and calyces, renal parenchyma atrophy, and renal hypoperfusion. Renal effusion may be caused by a variety of etiologies, such as urinary tract tumors, urinary tract stones and so on.
If the hydronephrosis caused by urological tumor is more serious, surgery, radiotherapy, etc. should be carried out in time; if the hydronephrosis caused by stones, the situation is usually not very serious, and stones should be drained or extracorporeal lithotripsy, etc.
Kidney effusion 10mm should go to the hospital in time, under the guidance of professional physicians treatment.