Patient's question:
After pregnancy, how many ultrasounds should be done under normal circumstances, and at what stages?Doctor's answer:
Hello: Under normal circumstances, it is advisable for pregnant women to undergo 4 ultrasound examinations during their pregnancy. The four examination periods are as follows:1. Early Pregnancy: After 6 weeks (42 days) of amenorrhea, in addition to routine gynecological examinations, an ultrasound should be performed to determine whether the intrauterine pregnancy is normal. For example, if no pregnancy signs are detected within the uterine cavity but abnormal masses are found outside the uterus, combined with the patient's other clinical manifestations and laboratory test results, ectopic pregnancy should be considered. Ultrasound examinations in the early stages of pregnancy can also clarify whether the pregnancy is normal, multiple pregnancies, or a molar pregnancy.
2. Mid Pregnancy: Around the 16th week of pregnancy, another ultrasound examination can provide an overall assessment of the fetus's growth and development.
3. Late Mid to Late Pregnancy: Around the 28th week of pregnancy, a follow-up ultrasound examination can provide a clearer understanding of the development of fetal organs and tissues, allowing for the identification of any potential abnormalities. If abnormalities are detected, it is advisable to terminate the pregnancy promptly based on the recommendations of an obstetrician and relevant policies.
4. Late Pregnancy: Around the 36th week of pregnancy, or before the due date, another ultrasound examination can assess the amount of amniotic fluid, whether the placenta has calcified, the length of the umbilical cord, whether the fetus is in breech position, and whether the umbilical cord is wrapped around the neck. These findings, combined with clinical considerations, can help determine whether to continue the pregnancy. At this stage, ultrasound examinations can also estimate the fetus's weight based on measurements of the head circumference and bones, clarify the fetus's position, and predict whether the pregnant woman can deliver naturally.
As shown above, undergoing 4 ultrasound examinations throughout the entire pregnancy is very necessary. If special circumstances require additional examinations, please follow the doctor's instructions.