临床医学证实,当35岁以上的妇女怀孕时,她们比正常育龄妇女怀孕危险性高。医学研究发现,35岁以后生育的妇女,其臀位产、手术产和先天愚型的发生率都较高。加之这个年龄孕妇骨盆和韧带功能退化、软产道组织弹性较小,子宫收缩力相应减弱,易导致产 Clinical medicine confirms that when women over the age of 35 are pregnant, they are at a higher risk of pregnancy than women of normal childbearing age. Medical research found that women who gave birth after the age of 35 had a high incidence of breech, surgery and Down’s syndrome. Coupled with the deterioration of pelvic and ligament function of pregnant women of this age, soft tissue elasticity smaller, corresponding reduction in uterine contractility, easily lead to production