I would like to know if when your making wudu, and blood
comes from your teeth do you have to make wudu all over again, and when you make wudu, and
you blow out blood do you have to start you wudu over again?

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English translation:

Praise be to Allaah, and peace and blessings
be upon His Messenger.

May Allaah reward you for your question.

Regarding the effusion of blood from between
the teeth, it does not nullify the wudoo’ as long as it is minor (i.e. not profuse
or a large amount), even if one ejects it from his mouth.

Allaah knows what is best and most correct.