Bleeding gums in children are most likely caused by gingivitis due to poorly maintained oral hygiene, because there is a large amount of food debris, soft scale, and plaque, attached around the teeth, and the gum pockets are not cleaned in a timely manner, and over time, the gums become inflamed and even red and swollen and bleeding, and for children are no exception. Parents can see red and swollen gums by taking a toothpick and scraping the soft scale attached to the surface of the teeth, and even red and swollen gums bleed by touching them. Parents must make sure that their children brush their teeth regularly, morning and night, and that the brushing time is maintained for more than five minutes.