Patient's question:
Table of comparison between hip-to-heel circumference and gestational ageDoctor's answer:
NT value, which stands for nuchal translucency, refers to the accumulation of fluid in the subcutaneous tissue at the back of the fetus's neck. NT value is closely related to gestational age, and the measurement period is strictly defined, conducted between weeks 11 and 14 of pregnancy. After week 14, the fetal lymphatic system develops fully, and the fluid accumulated in the neck area drains rapidly, making it difficult for ultrasound to observe the "translucency." In normal pregnancies, the thickness of the nuchal translucency slightly increases from weeks 11 to 14. A rough and simple estimation method is that values less than 2.5 mm are considered normal, while values greater than 2.5 mm are diagnosed as nuchal translucency thickening. If your baby is developing normally, appropriate exercise can be beneficial, which may help with natural labor and delivery later on.