According to a study published in the Journal of International Society of Preventive & Community Dentistry in 2016, nearly 95% of Indians suffer from one or the other variety of periodontal diseases or a disease of the gums (Source: https://www.ncbi.nlm.nih.gov). Periodontal diseases vary in nature, but the most common condition being bleeding gums.
Whenever you brush your teeth and find bloodstains in the foam, or a taste of blood in your mouth, or stains of blood in the food you are eating, it's a sign of bleeding gums. Plaque or tartar, which is the hard substance that builds up between the base of the teeth and the gum line, if not removed regularly, can harden with time and trigger bleeding in the gums. This condition is called Gingivitis or inflamed gums. This condition is generally painless and is marked by other symptoms such as tender gums, foul smelling breath, loose teeth and discomfort while biting into food. If treated in time by a good dentist, gingivitis can be completely cured. However, if left untreated, the bleeding increases with time leading to a more serious jaw and bone disease called Periodontitis.