How does female right kidney mild hydronephrosis cause

Urine from renal pelvis discharge obstruction called hydronephrosis, the formation of a variety of reasons, such as: congenital ureteropelvic junction stenosis, can cause hydronephrosis, due to slow development of the disease, it can be a long time without obvious symptoms; If there are renal pelvis stones will also cause urine discharge obstruction, can show mild hydronephrosis; There are urinary system inflammation, or tuberculosis can also cause secondary hydronephrosis, the main symptoms are the symptoms of primary disease; Also, during normal pregnancy, there will often be mild hydronephrosis, which is caused by uterine compression of pregnancy, almost all on the right side. Mild hydronephrosis in women, depending on what causes it, after the specific cause of diagnosis is clear, then take corresponding treatment measures.