Gum Is Red? Redness can have several causes, including plaque buildup, irritation, gingivitis, or other oral health concerns. Learn about common symptoms, possible causes, and treatment options that may help improve gum health. Persistent redness, swelling, bleeding, or discomfort should not be ignored. Allure Dentistry & Aesthetics in Canton, MA provides dental care to help patients understand gum concerns and receive appropriate treatment. Regular checkups and proper oral hygiene can also help support healthier gums and a confident smile.