The passing of stool, urine and wind breaks wudhu. However, if one passes wind from the forepart, as it occassionally happens because of sickness, wudhu will not break. If some worms or stones come out from the front or back, then too wudhu will break. If a worm comes out from a wound, or from the ear, or if a piece of flesh falls off from a wound and no blood comes out; then in all these cases wudhu will not break.
If one was bleeding, or his nose was bleeding, or is injured and begins to bleed, or blood comes out from small boils (and pimples,etc.), or bleeds from any other part of the body, or some matter or pus comes out – then in all these cases wudhu will break. However, if the blood or pus remains on the mouth of the wound and does not flow over it, wudhu will not break. Based on this, if a person is pricked by a pin and blood comes out, but does not flow, then wudhu will not break.
If a person sneezes and some clotted, dry blood comes out, wudhu will not break. wudhu will only break if it is thin and flows. If a person inserts his finger in his nose, and after removing it sees a spot of blood which is more like a stain on his finger but does not flow, wudhu will not break.
If a pimple or boil in the eye bursts, or the person bursts it himself – and its liquid flows within the eye, wudhu will not break. But if it flows out of the eye, wudhu will break. In the same way, if a pimple or boil bursts in the ear, then as long as the pus remains in the canal and does not flow to a place whose washing is necessary when making ghusl, wudhu will not break. But if it flows to such a place which is necessary to wash when making ghusl, wudhu will break.