小张要分娩了,当她听医生说分娩时可能需要做“会阴切开手术”时,她迟疑了一下,问医生:“做了这个手术,会不会造成阴道松弛?”产妇中有小张这种担心的人不少。尽管阴道富有弹性和扩张性,然而,当直径约10厘米的胎头及胎体娩出阴道时,仍有可能造成不同程度的会阴、阴道撕裂伤。这 Xiao Zhang to give birth, and when she heard the doctor said childbirth may need to do “episiotomy surgery,” she hesitated a moment, asked the doctor: “The surgery, will not cause vaginal relaxation?” Maternal small A lot of people worried about this. Although the vagina is elastic and expandable, however, it is still possible to cause varying degrees of perineal and vaginal lacerations when the fetal head and carcass of about 10 cm in diameter are delivered vaginally. This