During pregnancy, women should undergo several ultrasound examinations to understand the condition of the fetus, such as length and weight, and to observe whether there are any abnormalities in the fetus. Some pregnant women may experience a smaller gestational age after undergoing ultrasound. So, what are the reasons why the gestational age on ultrasound is one week shorter than the actual one?
If a woman undergoes an ultrasound examination during pregnancy and finds that the fetus is one week younger than the actual gestational age, it is generally due to the woman's later ovulation, which causes the fertilized egg to implant later. This will shorten the development time of the embryo, so there may be a phenomenon of being one week shorter than the actual gestational age. Pregnant women need not worry about this situation, as it is not due to abnormal fetal development.
If the gestational age on ultrasound is one week smaller than the actual one during mid pregnancy, it is likely that the pregnant woman's usual nutritional intake is insufficient, resulting in slow fetal growth and development. Some pregnant women are afraid of losing their body shape, so they usually eat less, which can slow down fetal development. At this time, pregnant women need to strengthen their nutrition.
Some women may experience abnormalities in the placenta and umbilical cord during pregnancy, which can affect the supply of nutrients to the fetus and lead to insufficient absorption of nutrients by the fetus. At this time, during ultrasound examination, it may be found that the gestational age is one week smaller than the actual one, or even two weeks smaller. If the above problems occur, treatment measures should be taken as soon as possible