What does it mean if the fetal bilateral renal pelvis shows no separation?

Patient's question:

I am very scared when this happens. I often have lower abdominal pain and don't know how to solve it, so I came here to consult. What does it mean if the fetal bilateral renal pelvis shows no separation?

Doctor's answer:

Hello, this situation is considered normal. Simply put, the renal pelvis is the place where the kidney connects to the ureter. Renal pelvis dilation and separation are caused by kidney stones or ureteral malformation, which prevent urine from being expelled normally, leading to the renal pelvis becoming filled and enlarged. Renal pelvis separation can also occur when the fetus holds its urine.
Hello, generally, if the lateral ventricle separation does not exceed 12mm during the late stages of pregnancy, it is considered normal. In the current situation, it can be monitored first, as it falls within the normal range. If it exceeds 16mm, it may indicate hydrocephalus, which can affect the intellectual development of the fetus. If necessary, induction of labor can be considered.

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