Umbilical ureter atresia occurs after birth, but there are a small number of patients who are not atresia, so the corresponding symptoms will appear: 1, repeated umbilical infections, because the umbilical ureter has a secretory function, the other end of the umbilical ureter is located at the top of the bladder, there can be a little urine into the umbilical ureter, which can cause repeated umbilical infections oozing and seeping fluid with urine odor, local pain and lumps. 2, if the umbilical ureter appears unilateral atresia, it is called umbilical fistula, which can cause pain inside the umbilicus, or form an umbilical cyst that causes pain around the umbilicus. unilateral atresia of the umbilical ureter occurs, it is called umbilical ureteric fistula, which can cause pain inside the umbilical ureter, or form an umbilical ureteric cyst, causing pain around the umbilicus, accompanied by redness in the umbilicus, oozing fluid from the umbilicus, and pain in the umbilicus.3. After the umbilical ureteric cyst is infected with a combination of infections, it can have pain in the lower abdomen, or be accompanied by frequent urination, urgency to urinate, recurrent infections in the umbilicus, and an unexplained rise in temperature, which requires a definitive diagnosis, and when necessary Removal of umbilical ureteric cyst is necessary.