One tooth bleeds when flossing

Bleeding beside one tooth usually indicates local gum inflammation, but trapped food, calculus, a rough filling, or trauma can also be responsible.

A single inflamed pocket can occur beside an otherwise healthy mouth, especially where cleaning is difficult.

Clean the contact gently each day, curve floss around each tooth, and avoid snapping it into the gum.

Book care if the site keeps bleeding, traps food, hurts, or feels swollen. Ask about pockets, calculus, decay, and filling edges.

Ask which diagnosis fits the findings, what treatment is needed, and what changes should prompt earlier review.