Mouth bleeding for no reason

Bleeding usually comes from irritated or inflamed gums, but persistent or unexplained bleeding needs a dental examination.

Blood may appear around the gum margin, between teeth, on a toothbrush, or after eating. Common causes include plaque-related gingivitis, a cut, forceful brushing, or gum disease; less commonly, medicines or a general health problem can contribute.

Brush gently with a soft toothbrush and clean between the teeth once daily, without stopping because of a small amount of blood. Do not probe the area or place aspirin directly on the gum, and note when the bleeding occurs.

Arrange a dental visit if bleeding recurs, lasts beyond a short episode, or comes with swollen gums, bad breath, loose teeth, or pain. Seek urgent medical help for heavy bleeding that will not stop with firm gauze pressure, or bleeding with faintness or breathing difficulty.

Ask whether the bleeding is from gingivitis, periodontitis, trauma, or a medication effect, and whether you need periodontal probing, dental radiographs, or a professional cleaning. Ask which brushing and interdental method fits your gum condition.