Fetus with two kidneys on the left side is usually congenital kidney malformation, if not treated properly may affect the health of the fetus, produce hydronephrosis and many other undesirable symptoms, you should seek medical treatment in time. When there are two kidneys on the left side of the fetus, the upper and lower left renal pelvic ureter behind the ureter is easy to be compressed, resulting in hydronephrosis, infection, obstruction and other adverse symptoms, and over time it will also cause renal insufficiency, urinary tract infections, and many other diseases. Fetuses with two kidneys on the left side should seek medical attention in time, and surgical resection and treatment should be carried out according to the condition of the fetus. If the situation is more serious, or genetic chromosomal abnormalities, you can choose to terminate the pregnancy according to medical advice. Pregnant women should go to the hospital regularly for maternity checkups after pregnancy, pay attention to more rest, avoid staying up late, eat a light diet, balanced nutrition, and maintain a good mindset. Pregnant women in pregnancy once produced pain severe, bleeding and other adverse symptoms should promptly seek medical attention, go to the regular hospital examination, so as not to cause more serious consequences.