Taking vitamin C for bleeding gums usually has no significant effect. Vitamin C is a water-soluble vitamin preparation mainly used for the prevention or treatment of vitamin C deficiency, such as scurvy; it can also be used as an adjunct to the treatment of diseases, such as infectious diseases and purpura, Vitamin C enhances the body’s resistance, antioxidant, and improves the body’s immunity. The most common cause of bleeding gums is gingivitis or periodontitis, which occurs when plaque and calculus irritate the gums continuously and chronically for a long time due to incomplete cleaning around the teeth. Inflamed gums are brittle in texture and tend to bleed when touched and brushed. The treatment is teeth cleaning and combined with a combination of anti-inflammatory treatment, the use of vitamin C is not effective. Bleeding gums should also exclude blood diseases. The symptoms of bleeding gums should be taken seriously, and should be treated in a timely manner under the guidance of a doctor.