Diarrhoea is when waste from the bowel is watery and comes out often. You keep needing the toilet; the stool is loose, not formed. A stomach bug, bad food, or some medicines can bring it on.

Diarrhoea is when waste from the bowel is watery and comes out oftenDiarrhoea指的是腸道排出的廢物又水又頻繁的狀況。You keep needing the toilet你會一直想上廁所; the stool is loose, not formed糞便是稀的，成不了形。A stomach bug, bad food, or some medicines can bring it on腸胃炎、壞掉的食物，或某些藥物都可能引起這種情況。

This spelling, diarrhoea, is the British one; American English writes diarrhea. Both are the same word, said roughly dye-uh-REE-uh.

This spelling, diarrhoea, is the British one這個拼法diarrhoea是英式拼法; American English writes diarrhea美式英文則拼作diarrhea。Both are the same word, said roughly dye-uh-REE-uh兩者是同一個字，唸法大致是dye-uh-REE-uh。

It is the doctor’s word. With children, and at home, people more often say the runs, an upset tummy, or in Chinese 拉肚子.

It is the doctor's word這是醫生用的字。With children, and at home在小孩身上、在家裡, people more often say the runs人們更常說the runs, an upset tummy或an upset tummy（腸胃不舒服）, or in Chinese 拉肚子或中文的「拉肚子」。

Though actually, doctors still want the precise word, because watery stool is a different problem from constipation (when nothing comes) or from stool that is only a bit soft.

Though actually不過事實上, doctors still want the precise word醫生還是希望用精確的字, because watery stool is a different problem from constipation因為水便和便秘是不同的問題 (when nothing comes便秘是什麼都排不出來) or from stool that is only a bit soft也和只是有點軟的糞便不一樣。