Frequent ultrasound has no effect on the fetus.
Yin ultrasound itself is not radioactive. Unlike X-rays and CTs, which are radioactive, Yin ultrasound during pregnancy utilizes sound waves. Yin ultrasound is closer to the uterus than abdominal ultrasound, so it can detect the position of the gestational sac inside and outside the uterus and the fetal heart earlier than abdominal ultrasound.
The probe of vaginal ultrasound can only reach the outside of the cervix through the vagina, not inside the uterus where the embryo is growing, and the examination is shorter. Pregnant women need to relax and not be overly nervous during a vaginal ultrasound, as excessive nervousness may stimulate the uterus and cause contractions that can lead to pain in the lower abdomen.
Pregnant women should follow the doctor’s instructions and complete the ultrasound regularly to monitor the development of the fetus. If there are complications, the frequency of ultrasound may need to be increased.