U.S. doctors online nowAsk doctors free
A 42-year-old member asked:

What does dilated fetal kidneys with normal amniotic fluid mean for a second trimester fetus?

2 doctor answers2 doctors weighed in
Dr. Luis Gonzalez
Obstetrics and Gynecology 41 years experience
Hormonal effect: Mild dilatation of kidneys is often the effect of maternal Progesterone on the baby. If the amniotic fluid is normal chances are that there's no significant disease affecting the fetus. Careful observation and follow up ultrasound is indicate in consultation with the OB team.
Created for people with ongoing healthcare needs but benefits everyone.
Dr. Nikolaos Zacharias
Maternal-Fetal Medicine 28 years experience
No big deal.: Detecting renal problems by fetal ultrasound is very accurate and efficient because it can prevent serious complications postnatally. Fetal renal pyelectasis or even hydronephrosis is nothing to worry about, provided the amniotic fluid is monitored and remains normal. The neonatology team should be notified at birth to institute appropriate follow-up for the newborn; monthly ultrasounds are needed.
Created for people with ongoing healthcare needs but benefits everyone.
Last updated May 10, 2018


Content on HealthTap (including answers) should not be used for medical advice, diagnosis, or treatment, and interactions on HealthTap do not create a doctor-patient relationship. Never disregard or delay professional medical advice in person because of anything on HealthTap. Call your doctor or 911 if you think you may have a medical emergency.