There are a few situations where vomiting breaks wudu:

1. If vomit contains food or water and the amount is mouthful or more, wudu is broken. A mouthful is defined as an amount difficult to retain in the mouth. If the vomit is less than a mouthful, wudu is not broken.

2. If the vomit consists only of phlegm, wudu is not broken regardless of the amount, whether it is mouthful or not.

3. If the vomit contains blood:

– If the blood is thin and flowing, wudu is broken regardless of the amount, whether mouthful or not.

– If the blood is in the form of clots and the amount is mouthful, wudu is broken. If it is less than a mouthful, wudu is not broken.

4. If small amounts of vomit occur several times and together they would amount to a mouthful, the situation is considered as follows:

– If the nausea persisted continuously and small amounts of vomit were expelled each time, wudu is broken.

– If the nausea ceased and the person felt better before the next episode of vomiting, and this pattern repeated, wudu is not broken.