Sir, With
diabetes, there are incidents of increased Periodontitis (Pyorrhea) or gum inflammation, which may cause the bleeding. You must look for other signs and symptoms associated with this, like pain, sensitivity, or tooth mobility. If there is no decay or increased bone loss, the basic treatment of scaling and root planing can help save the tooth. Diabetes should be under control for better results. Therefore must consult a periodontist for the same. Regards