A 140-day NT scan, also known as a nuchal translucency scan, is an essential prenatal screening tool used to assess the risk of certain genetic disorders and birth defects. While it primarily focuses on measuring the thickness of fluid at the back of the baby's neck to detect chromosomal abnormalities, it can also provide valuable information about potential kidney problems like hydronephrosis. Hydronephrosis refers to the swelling or enlargement of one or both kidneys due to urine buildup caused by an obstruction or blockage in the urinary tract. During a 140-day NT scan, specialized ultrasound techniques are employed to examine the baby's kidneys and evaluate their size, shape, and overall function. If any signs of hydronephrosis are detected, further diagnostic tests may be recommended to determine its severity and underlying cause. Early detection through a 140-day NT scan allows healthcare providers to monitor and manage hydronephrosis promptly, minimizing potential complications for both mother and baby. It is important for expectant parents to discuss any concerns or questions regarding this screening test with their healthcare provider for personalized guidance and support throughout their pregnancy journey.