Patient's question:
16-week-old fetus has a left renal pelvis width of 0.5 cm and a right renal pelvis width of 0.4 cm. Is this normal?Doctor's answer:
Hello, according to your description, there can be a small amount of fluid separation in the fetal renal pelvis during pregnancy, especially when the fetus is holding its urine. Before 28 weeks of pregnancy, the renal pelvis separation should not exceed 0.7 cm, and after 28 weeks, it should not exceed 1.0 cm to be considered normal. At 16 weeks of pregnancy, the fetal renal pelvis separation falls within the normal range, so you don't need to worry. It is recommended that you follow up on the fetal changes after one month.