9 Causes of Bleeding Gums When You Brush Your Teeth

Consider Your Medicine
Certain medicines also increase the likelihood that your gums will bleed. Some over-the-counter pain relievers, like aspirin, thin the blood and can therefore increase bleeding. It's also possible for a prescription medication to cause gum bleeding. If that is the case, your doctor might prescribe a different dose or a different medication altogether. Always talk to your doctor if you think a medication is causing side effects, even if they seem mild.