1. Pyometra is prevented, either due to the removal of the organ (when ovariohysterectomy is performed) and/or because of the lack of female sex hormones (oestrogen and progesterone) after spaying.
   子宫积脓是可以防止的，在拿掉子宫（绝育）之后。因为很少的女性荷尔蒙会产生在绝育之后。

声明：以上例句、词性分类均由互联网资源自动生成，未经过人工审核，其表达内容亦不代表本软件的观点；若发现问题，欢迎向我们指正。