Deficiency of which vitamin causes bleeding gums

Vitamin C deficiency can contribute to bleeding gums, but plaque-related gingivitis is a more common dental cause and needs an oral examination.

Vitamin C supports collagen formation and connective tissue, so marked deficiency can affect gum integrity. Bleeding can also come from inflamed gums, periodontal disease, trauma from brushing, medicines, or blood disorders.

Brush twice daily with a soft brush, clean between teeth, and eat a varied diet rather than starting high-dose supplements without medical advice. A clinician may examine the gums and arrange blood testing when the history suggests deficiency.

Book dental care when bleeding is recurrent, spontaneous, paired with bad breath or loose teeth, or not improving with gentle cleaning. Seek prompt medical care for heavy bleeding or widespread bruising.

Ask whether the pattern fits gingivitis or periodontal disease, whether a medicine contributes, and whether medical review or blood tests are appropriate.