Will hydronephrosis disappear on its own?

If hydronephrosis

is caused by prolonged urine retention or uterine compression during pregnancy, it belongs to physiological hydronephrosis and usually does not require special treatment. It can disappear after a period of time. If the patient's condition is caused by factors such as stones and tumors, it belongs to pathological hydronephrosis. Stones and tumors cannot disappear gradually with the development of time, and if they are not treated in time, they may gradually increase the size of stones and tumors, affecting surrounding tissues and usually not disappearing by themselves.