Question 1 for pregnant moms: Is it safe to do B-ultrasound during pregnancy? Ultrasound examination is a non-invasive imaging technology that is suitable for diagnosing pregnancy, monitoring fetal development, detecting certain structural abnormalities of the fetus, and understanding the condition of the placenta and amniotic fluid. As reported in the available scientific literature, diagnostic dose ultrasonography did not detect irreversible damage to the embryo. B-ultrasound examination is a must-have examination for pregnant mothers during pregnancy. This is an energy test without X-rays or ionizing radiation. In terms of the wave volume and exposure time used in clinical ultrasound examination of pregnant women, its safety is safe. It can ensure that pregnant mothers do not give birth due to this