There are several reasons why your gums might bleed. In most cases, oral health-related issues cause it. But it can also be a symptom of other health conditions.Bleeding gums can get worse over time if you ignore them, especially if gum disease is the culprit. Left untreated, gum disease erodes the tissue, ligaments and bone that support your teeth. This can lead to a continuing cycle of infection, bad breath and even tooth loss.