Birth pain
Pain is caused by contractures of uterine muscle tissue. The muscle fibers arranged in vertical and diagonal lines wrap the pear-shaped uterus extremely tough. This layered and staggered arrangement allows the uterus to achieve maximum contraction under the control of hormones, and it can also properly adjust the direction of force, so that it can Use enough strength to push your baby out of the body. In general, uterine muscles are the main force for labor pain. In addition, pelvic muscles and ligaments that fix the uterus to the abdomen are also directly involved in the formation of labor pain.
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