Does pelvic size affect labor process?

Case sharing: The fetal weight is also within the normal range for the items that were not examined in pelvic cavity before delivery in Ke Yu. However, in the process of natural delivery, she could not give full play to her strength, and the pelvic volume was suspected to be too small, so she changed to caesarean section temporarily and urgently, which is commonly known as "eating the whole meal", so that she had to bear the pain caused by two delivery methods in the future. Pelvic size will not only affect the process of natural delivery, but also dominate the delivery mode of expectant mothers; However, according to the rules of traditional mother-in-law, it is too general to judge the pelvic size by observing the female buttocks. The real judgment method should be based on professional medical equipment and internal diagnosis, so that the result will not be too far from the real pelvic size. Part 1 Concept article Pelvis shapes can be divided into four types: human pelvis and primate pelvis. Not all look exactly the same. According to their types, they can be simply divided into four categories. Zhang Xinsheng, deputy director of the Maternal and Child Clinic, said that the first type is the female pelvis, which is round or oval. The second is the male pelvis, which has many edges and corners, which is somewhat similar to the shape of love; The third type is ape-shaped pelvis, which is characterized by wide front and back and narrow left and right; The last one is the flat pelvis, which is opposite to the ape-shaped pelvis, and is characterized by narrow front and back and wide left and right. Among these four types, female pelvis and ape-shaped pelvis are the most suitable for production. The size of the pelvis should not be judged by the naked eye. "Oh, look at you, you must have a good baby in the future!" I believe that up to now, there are still many women who have heard this sentence. Even if it is a joke between acquaintances, it shows that this practice has prevailed in traditional society for some time. Dr. Zhang pointed out that to judge the pelvic size, it is not according to the folk saying that "it is big or small from the back of a woman". On the contrary, it should be interpreted by modern scientific methods, such as X-ray irradiation or internal diagnosis to diagnose the pelvic size of a woman. Does pelvic size affect labor process? Whether the pelvic size affects the labor process has been the focus of many mother-in-law since ancient times. Some people even say that "when choosing a wife, you should choose a round and big woman to give birth quickly"! In response to this problem, Dr. Zhang said that the factors affecting the progress of labor and the success of natural delivery can be roughly divided into four categories, namely, the size of the birth canal and pelvis, the size of the fetus, the uterine contractility and the force exerted by the expectant mother. So the size of the pelvis does affect the success of delivery. However, although this statement seems reasonable on the surface, it does not mean that a large pelvis must be born soon, and it must depend on the size of the fetus at that time and the health status of the expectant mother. Part2 Measurement of Pelvic X-ray Photography Dr. Zhang pointed out that in order to measure whether the pelvic size can adapt to natural childbirth, some doctors used pelvic X-ray photography in the past to help expectant mothers photograph the front and side of the pelvis respectively, so that the symmetrical relationship between the fetal head size and the pelvis can be measured, and then it can be divided into three types: narrow, medium and wide. If it is narrow, the success rate of natural delivery is relatively low, and there is a chance to reach the standard of caesarean section. However, expectant mothers have not yet entered the labor stage when they are exposed to X-rays. Once entering the labor stage, women will secrete relaxin, which will make the ligaments between bones softer, make the bones easy to separate, and contribute to the delivery of the fetus. In other words, even if the pelvis is small when X-rays are taken, it may swell during childbirth, so the accuracy rate is only 70%. Pelvic X-ray photography can not be used as the basis for caesarean section, and X-ray irradiation during pregnancy may lead to the risk of teratogenesis. In addition, whether the cervix is fully open and the fetal head is completely low during delivery is also an important key to affect the labor process, so fewer and fewer expectant mothers will do this examination now. Between 35 and 37 weeks of pregnancy, many doctors usually advise expectant mothers to screen for Streptococcus B to confirm whether there are bacteria in the birth canal. During the examination, we will take the secretion of pregnant women with cotton swabs. Some doctors will examine expectant mothers by the way, use their fingers to evaluate whether the included angle between the left and right pubic bones is greater than 90 degrees, and also measure the distance from the fetal head to the bone above the pubic symphysis. However, due to the different experience of each medical staff, the accuracy rate is not 100%, and even the evaluation results of different medical staff are quite different, which is only of reference value. Text/Lin Yuru interview consultation? Some pictures are provided/photo by Zhang Xinsheng, Vice President of Maternal and Child Health Hospital? Make-up Hair Style/Benington Advertising Style * * * Expression/Beautiful Mommy Zhan Jiaqing ※ The original text was published in the July issue of Mommy Baby Magazine 20 14. See mombaby/ for more exciting content. ※. This article is authorized by Mama Baby magazine, and it is forbidden to reprint without permission. Subscribe to Health Aloha Audio-visual Channel, read health knowledge more easily, and pay attention to your health every day! ※! Line @ ID: @:/supply/article/16022/Does pelvic size affect the labor process Key words: maternal and child magazine, pelvis, labor process, * * *, fetus.