One cause may be that you are using a hard bristled brush, or brushing to hard, or flossing to hard. If there is another reason- an inflammation or infection of the gums, which is left untreated, it can extend to the supporting jaw bone. When this is left untreated, the bone dissolves, the teeth become loose, and you then loose your teeth. We don't want that to happen, says Danbury, CT dentist Jay M. Marks, DMD. There can even be worse causes.
So, if your gums bleed occasionally, or regularly, please contact us to make an appointment to evaluate the cause of the bleeding. If there is a problem with your gums, there are many non-surgical solutions that we can explore.