Whether a pregnant woman with right hydronephrosis can have a normal delivery should be discussed from the following two aspects: First, the enlarged uterus during pregnancy will often compress the right ureter, thus causing right hydronephrosis in pregnant women, for mild right hydronephrosis, pregnant women can avoid lying on their backs during pregnancy as well as adopting prone position, and it is better to sleep on the left side frequently, thus alleviating the pressure of the fetus on the right ureter, and it can be better to alleviate the situation of hydronephrosis, and a normal delivery can be carried out. This will help to relieve the hydronephrosis and allow for a normal delivery. Second, if the uterus on the right side of the ureter pressure is more serious, the emergence of obvious back pain or even urinary frequency, urinary urgency, urinary pain and other signs of urinary tract irritation, suggesting that there is a urinary tract infection, it is best to go to the obstetrics department of the hospital in a timely manner, so that the doctor to carry out a systematic examination and diagnosis and treatment.