Women often go to the hospital for examinations during pregnancy, which can detect abnormalities in a timely manner and take measures as soon as possible. Ultrasound is an important examination during pregnancy. Through ultrasound examination, one can understand the development of the fetus, such as body length, weight, and biparietal diameter. So, what is the normal biparietal diameter at 22 weeks of pregnancy?
At 22 weeks of pregnancy, the normal biparietal diameter for women is 51-59 millimeters. At this time, the average biparietal diameter of the fetus is 54-56 millimeters. When conducting an examination, as long as the fetal biparietal diameter value is within the above range, it indicates that the baby's development is normal.
If the biparietal diameter of the fetus is too small, such as less than 51 millimeters, it is considered an abnormal situation, which is likely caused by fetal developmental delay. At this time, pregnant women need to increase their nutrition, especially by eating more high protein foods to promote fetal development. And when necessary, some governance measures need to be taken.
If the biparietal diameter of the fetus at 22 weeks of pregnancy is greater than 59 millimeters, it is also abnormal, which may be caused by diseases such as hydrocephalus, which can lead to the fetus having an excessively large biparietal diameter. Moreover, when fetal head deformities occur, there may also be cases of excessive biparietal diameter. So after this problem occurs, further examination must be conducted to confirm the cause of the child's excessive biparietal diameter.
