There are lots of reasons why your gums would bleed simply this are some of the reason the food you eat or brushing it too much as well as a sign of periodontal disease.
MOST people know of the inherited bleeding disorder hemophilia. But von Willebrand's disease, a far more common clotting disorder, is little known. Hemophilia afflicts one man in 10,000, but von Willebrand's may affect as many as one in 100 men and women, often causing frequent nosebleeds, bleeding gums, easy bruising and excessive menstrual flow.
Reports in the Journal of Periodontology found a strong relationship between stress, distress, anxiety, depression, loneliness, financial strain, and periodontal disease.