Mucus is a secretion produced by the mucus membranes to lubricate and protect parts of the body, such as the lining of organs. For example, in the intestines, it allows for the passage of food and protects against bacteria. The passage of bloody mucus through the anus, mouth, or respiratory tract may be an indication of infection or perferation of an internal organ.

Bloody Mucus is most frequently associated with the following conditions by our members