How many weeks of pregnancy can be checked by B-ultrasound

B-ultrasound is a very good technology for hospitals to check internal body problems. It can detect what problems are occurring inside the human body without surgery. It is most commonly used by pregnant women to check the condition of the fetus, and can more intuitively observe the condition of the fetus in the abdomen. However, B-ultrasound is not omnipotent. It can only examine the fetus within a certain period of time. Here is a specific introduction on how many weeks of pregnancy B-ultrasound can detect.

B-ultrasound examination is a type of ultrasonic examination and a non-surgical diagnostic examination. The gender of the fetus can be known through B-ultrasound. Gender identification is prohibited in my country. Ultrasound examination can only see the gestational sac after 5 weeks of pregnancy, and the detection rate of the gestational sac reaches 100% at 6 weeks of pregnancy. The embryo can be seen at 6-7 weeks of pregnancy. At 49 days of pregnancy, when the diameter of the embryo is 2mm, the primitive heart tube beating can be seen. At 8 weeks of pregnancy, the human shape begins to take shape. All organs are formed at the 14th week, hair begins to appear at the 15th week, and the uterus is about 16CM at the 16th week. At the end of the 17th week, the baby's movements are restricted and fetal movements occur. The second scan (to determine gender) is done at the end of week 21. The gender will be known at the end of the 22nd week.

If you do an ultrasound too early, it will not be easy to see the shadow of the gestational sac because it is too small. Not every doctor can make an accurate diagnosis, and it depends on the experience of the person doing the imaging, and the more they do, the better. Ideally, it is easy to see at 8-10 weeks of pregnancy. And if you do ultrasound too early,