肩难产腹围大于头围多少？

来自丁英波医生的专业解答，快打开看看是否又获得了新的知识点～

https://m.baidu.com/bd_page_type=1/t=mip/tc?ct=54&lid=38596244515223&module=mip&cst=91&clk_extra=%7B%22pageid%22%3A%2238596244515223%22%2C%22searchID%22%3A%2238596244515223%22%2C%22nPageID%22%3A%2238596244515223%22%2C%22mip_logid%22%3A%2238596244515223%22%2C%22masterpage_type%22%3A%22self%22%2C%22originalUrl%22%3A%22https%3A%5C%2F%5C%2Fmip.familydoctor.com.cn%5C%2Fask%5C%2Fq%5C%2F20021523.html%22%2C%22srcid%22%3A%22landingpage%22%2C%22name%22%3A%22A%5Cu533a%5Cu6b63%5Cu6587%5Cu6298%5Cu53e0%22%2C%22id%22%3A%22expand_content%22%7D&tcreq4log=1

https://m.baidu.com/bd_page_type=1/t=mip/tc?ct=54&lid=38596244515223&module=mip&cst=112&clk_extra=%7B%22pageid%22%3A%2238596244515223%22%2C%22searchID%22%3A%2238596244515223%22%2C%22nPageID%22%3A%2238596244515223%22%2C%22mip_logid%22%3A%2238596244515223%22%2C%22masterpage_type%22%3A%22self%22%2C%22originalUrl%22%3A%22https%3A%5C%2F%5C%2Fmip.familydoctor.com.cn%5C%2Fask%5C%2Fq%5C%2F20021523.html%22%2C%22srcid%22%3A%22landingpage%22%2C%22name%22%3A%22A%5Cu533a%5Cu6b63%5Cu6587%5Cu4e0b%5Cu65b9%5Cu4e2d%5Cu95f4%5Cu5c55%5Cu5f00%5Cu6309%5Cu94ae%22%2C%22id%22%3A%22new_expand_content%22%7D&tcreq4log=1

家庭医生在线

病情分析：一般肩难产不是根据腹围判断的，肩难产B超检查测定，是根据胎儿的胸径大于胎儿的双顶径1.3厘米，胸围大于头围1.6厘米或是肩围大于头围4.8厘米，这时就考虑可能会有肩难产的发生，所以检查巨大儿，还有产程延迟，肩难产的几率就会增加，如果宫口开全，但是胎头还是滞留不下降，也是发生肩难产的表现。

丁英波

副主任医师

提示：本内容仅作参考，不能代替面诊，如有不适请尽快线下就医

问题描述：今天在医院做了一个4维彩超，医生说我的孩子腹围和头围不成比例，我在网上看了这种情况可能发生肩难产。请问肩难产腹围大于多少？