Does it matter if I do ultrasound when I'm pregnant?

In fact, you can go to the hospital for an ultrasound when you first become pregnant. This will not have any impact on your body or the fetus, so don’t worry too much. Only after this examination can you know whether the fetus in the belly is healthy, and the physical condition of pregnant women can also be clearer. If any abnormalities occur, relevant treatment measures should be taken immediately.

Ultrasound diagnosis in obstetrics can be applied to: normal pregnancy, ectopic pregnancy, placenta previa, placental abruption, and polyhydramnios. The hospital's ultrasound examination report generally includes the following contents: gestational sac, fetal head, fetal heart rate, fetal movement, placenta, femur, amniotic fluid and spine. What do they indicate? What is normal and what is abnormal? Here are some reference indicators:

(1) Gestational sac: The gestational sac is only seen in early pregnancy. Its normal size is about 2 cm in diameter at 1.5 months of pregnancy and about 5 cm at 2.5 months. It is normal for the gestational sac to be located at the fundus, front wall, back wall, upper part, or middle part of the uterus; it is normal for it to be round, oval, and clear in shape; if the gestational sac is irregular in shape, blurred, and located in the lower part, and the pregnant woman also has abdominal pain or vaginal bleeding, she may have a miscarriage.

(2) Fetal head: A complete outline is normal; defects or deformations are abnormal; no displacement of the brain midline and no hydrocephalus are normal. BPD stands for the biparietal diameter of the fetal head, which should reach 9.3 cm or more when the pregnancy reaches full term. According to general rules, after 5 months of pregnancy, the BPD is basically consistent with the month of pregnancy, that is, at 28 weeks of pregnancy (7 months) the BPD is about 7.0 cm, at 32 weeks of pregnancy (8 months) it is about 8.0 cm, and so on. After 8 months of pregnancy, an average weekly growth of about 0.2 cm is normal.

(3) Fetal heart rate: presence and strong heart rate are normal; absence and weak heart rate are abnormal. The normal fetal heart rate is between 120-160 beats per minute.

(3) Fetal movement: If it is strong, it is normal. If it is weak, it may indicate that the fetus is sleeping. It may also be an abnormal situation and needs to be analyzed comprehensively in combination with other factors. (5) Placenta: The position refers to the location of the placenta on the uterine wall. The normal thickness of the placenta should be between 2.5 and 5 cm. The calcification report is divided into three grades. Grade I is the early stage of placental maturity, with uniform echoes. This change can be seen at 30-32 weeks of pregnancy. Grade II indicates that the placenta is close to maturity. Grade III indicates that the placenta is mature. The closer to full term, the more mature the placenta is and the more uneven the echo is.