关于宫颈松弛的症状反复自然流产专家陈凤林教授指出：先天性宫颈内口松弛为每次妊娠都有会发生早产或流产;而后天性子宫内口松弛症则表现为发生早产或流产的时间越来越早，或刚开始可正常妊娠分娩，而后因某种原因出现早产或流产。往因此破水而流产。

　　About the symptoms of cervical relaxation repeated spontaneous miscarriages expert Professor Chenfenglin pointed out: Congenital cervical cavity relaxation for each pregnancy will occur premature birth or miscarriages; The acquired intrauterine relaxation is manifested in the fact that premature birth or miscarriages occurs earlier or earlier, or that normal pregnancy can begin, and then premature birth or miscarriages occurs for some reason. To break the water and miscarry.