Why does my mouth bleed when i brush my teeth

Bleeding while brushing usually reflects inflamed gums, but trauma, infection, or a medical cause can also contribute.

The short answer

Bleeding during brushing most often comes from inflamed gingiva caused by plaque at the gum margin, although trauma, infection, or a medical problem can also contribute.

What is the direct answer?

What does this question mean?

Hard brushing, a new flossing routine, a broken filling, mouth ulcers, and some medicines can also injure or increase bleeding from oral tissue.

What can you do next?

Use a soft toothbrush with gentle small movements and clean between teeth daily, while recording where and how often bleeding occurs.

When should you seek dental care?

Book a dental examination if bleeding persists, gums are swollen or tender, teeth feel loose, or there is bad taste, pus, or facial swelling.

What should you ask the dentist?

Ask whether the bleeding is from gingivitis, periodontal disease, local trauma, or another cause, and whether you need professional cleaning or periodontal measurements.