Antenatal hydronephrosis
Sometimes called “large kidneys” or “swollen kidneys,” hydronephrosis is a term for extra fluid in the kidneys or ureters and it is a symptom of many of the other conditions listed here. When hydronephrosis is found during pregnancy, it usually resolves during the first few years of the child’s life. It is critical that an experienced pediatric urologist determine the cause of the condition and whether it a serious problem.