Women need to consider their mode of delivery in the late stages of pregnancy, and it is generally recommended to have a natural delivery. If the fetus is too large or the pregnant woman's condition does not allow it, a cesarean section surgery can be chosen. If choosing vaginal delivery, pelvic measurement is required before delivery. Does pelvic measurement necessarily require internal examination?
Pelvic measurement and internal examination are two different concepts, so be sure not to confuse them. Pelvic measurement is divided into internal measurement and external measurement. The external measurement is used to measure the four diameter lines of the pelvis. The normal value of the iliac crest diameter is 23-26cm, the normal value of the iliac spine diameter is 25-28cm, and the normal value of the sacral pubic diameter is 18-20cm. The most important measurement is the ischial tuberosity diameter, which has a normal value of 8.5-9.5 cm. If it is less than 8cm, a posterior sagittal diameter measurement is also required. If the measurement value cannot meet the standard, vaginal delivery cannot be performed.
Internal examination is divided into two methods: vaginal examination and anal examination. Whether the fetus can be delivered smoothly is also closely related to the size of the pelvis. The necessary passage for the fetus during vaginal delivery is the pelvis, and the speed of labor and the birth rate of the fetus are related to the size of the pelvis. If the pelvis is normal but the fetus is too large, or if the fetus is normal but the pelvis is too small, difficult labor is likely to occur. Therefore, conducting pelvic measurements in advance can estimate whether a pregnant woman can have a vaginal delivery and make early response measures.
Pregnant women need to go to the hospital for professional measurements, and measurements taken at home may have errors. If the postpartum woman does not meet the conditions for vaginal delivery as measured by the hospital, do not force it, and follow the professional advice of the doctor is the best policy.
