Bleeding from brushing is a sign of gingivitis and should be seen promptly for treatment of the associated disease. Brushing should be done with a small-headed soft-bristled toothbrush, but it should not be too soft to facilitate the cleaning of plaque and soft scale. The emphasis should be on mastering the correct brushing method such as the Bass brushing method and also the need to master the use of dental floss to facilitate the cleaning of gaps.
Healthy gums do not bleed when brushing, in isolated cases the bristles may be too hard gums may bleed, but usually the condition is that there is inflammation of the gums that needs to be treated promptly, bleeding gums not treated promptly can develop into periodontitis and there is a risk of tooth loss.