At which few weeks of pregnancy is B-ultrasound most effective?

After a woman becomes pregnant, new mothers are very curious about the growth of the baby in their belly. Stimulated by demand, B-ultrasound, a high-tech technology, came into being. B-ultrasound can clearly observe the condition of the baby in the pregnant woman's belly. Therefore, many pregnant women are eager to do B-ultrasound after they become pregnant, wanting to know how their baby is growing and whether they are healthy. However, B-ultrasound was developed by humans after all, and it is not known whether the examination will have adverse effects on children. Therefore, after a woman becomes pregnant, from which week should she start doing ultrasound to get the best results? Which time period is most suitable for children and mothers?

B-ultrasound is the most convenient and most commonly used technology for examining pregnant women in the current stage of technological development.

During an ultrasound examination at 5 weeks of pregnancy, a round halo can be seen in the uterus. This is the gestational sac.

Primitive heart beats can be seen at 8 weeks of pregnancy. Ultrasound examination can only see the gestational sac after 5 weeks of pregnancy.

The detection rate of gestational sac reaches 100% at 6 weeks of pregnancy.

The embryo can be seen at 6-7 weeks of pregnancy, and the primitive heart tube can be seen beating when the embryo diameter is 2mm at 49 days of pregnancy.

The fetus begins to take human form at 8 weeks of pregnancy.

After 14 weeks, all the organs of the fetus are formed, hair begins to appear at the end of the 15th week, and the uterus is about 16CM at the end of the 16th week. In the 17th week, the fetus will experience fetal movements in the uterus because movement is inhibited. The second scan (to determine gender) is done at the end of week 21. The sex of the fetus can be known after 22 weeks. Ideally, it will be easily visible at 8-10 weeks of pregnancy.

Moreover, if an ultrasound is performed too early, the fragile, newly formed embryo will theoretically be shaken, which is not conducive to embryonic development. It is best to avoid performing an ultrasound too early or performing it multiple times.

When undergoing a gynecological examination, many women feel both excited and anxious, yet also worried. This is a very normal psychological feeling. If you want to overcome your fear, the best way is to spend this beautiful and important period of time with your husband.

Therefore, we should understand that everything has a limit. It is not good to be too early or too late. Only by grasping the right time can you achieve the ideal effect. So, regarding the question of “At which few weeks of pregnancy is B-ultrasound most effective?” It depends on the individual, but the timing will not differ too much. Only timely examination can ensure the healthy birth and growth of the child.