Question
At 32 weeks of pregnancy, the fetus’s biparietal diameter measured 86mm, head circumference 309mm, femur length 60mm, and abdominal circumference 280mm. The examination results showed the head circumference was two weeks larger than expected, and it was recommended to have a follow-up examination to rule out the possibility of hydrocephalus. The pregnant woman’s menstrual cycle is irregular, with her last menstrual period on December 10th. The doctor calculated the due date based on early ultrasound and NT scan to be October 30th. The Down syndrome screening result was low risk, and the four-dimensional ultrasound examination was normal. The head circumference was 241mm at 25 weeks. Is this developmental situation normal, and will it affect the health of the fetus?
Answer
Based on the provided information, the fetus’s biparietal diameter appears slightly larger than normal, but considering the irregular menstrual cycle of the pregnant woman…