Bleeding gums are most often caused by gingivitis, a mild form of gum disease due to plaque buildup. Plaque is a sticky film of bacteria that can irritate the gums if not removed through proper brushing and flossing twice daily.
Sometimes, even with good cleaning, bleeding can occur due to medical conditions like pregnancy or uncontrolled diabetes. Your dentist can help identify if there's an underlying issue.
Bleeding is also common for a short time after dental treatments (like tooth removal or deep cleaning) or from injuries such as falls or sports accidents.
If your gums are bleeding, it’s best to have them checked by a dentist.