the most common form of gingivitis known as plaque-induced gingivitis develops due to plaque adhering to tooth surfaces. this is also the most common form of periodontal disease. in the absence of treatment gingivitis may progress to periodontitis which is a destructive form of periodontal disease. bleeding comes from inflammation. if you are bleeding every time you brush you need to see your dentist immediately.
what causes your gums to bleed while you’re brushing? what can i do to prevent it? this happens every time i brush.