排便

tā bù pái biàn zěn me bàn

它不排便怎么办？

What if it doesn't defecate?

zhè ge yào de fù zuò yòng kě néng bāo kuò pái biàn shī jìn

这个药的副作用可能包括排便失禁。

The drug's side-effects can include involuntary defecation.