Why blood coming from teeth while brushing

Blood seen while brushing usually comes from inflamed or injured gum tissue around the teeth, not from inside the teeth themselves.

Plaque at the gum margin can inflame gingiva, while vigorous brushing, a hard brush, recession, or an ulcer can injure it.

Continue gentle plaque removal with a soft brush and clean between teeth without snapping floss into the gums. Note where bleeding occurs.

Arrange examination for bleeding that lasts, increases, occurs spontaneously, or comes with swelling, pain, bad breath, loose teeth, or recession.

Ask what structure is affected, which examination is needed, and which treatment or product fits your teeth, gums, appliance, and medical history.