Children’s teeth with black spots are generally due to pigmentation, dental caries, plaque and other reasons, it is recommended that under the guidance of the physician according to their own situation to do the appropriate treatment. 1. Hyperpigmentation: if children do not pay attention to oral hygiene, it may cause hyperpigmentation, it is recommended that children should pay attention to the cleaning of the teeth in their daily lives, and if necessary, they can go to the hospital for scaling sandblasting and other ways to get rid of black spots. 2. Dental caries: If the teeth are decayed, it may also cause black spots on the surface of the teeth, it is recommended that children should go to the hospital to remove the decayed tissues as well as to repair them, and choose the appropriate restorative materials to fill them according to their own conditions. 3. Dental plaque: If the situation of children is mild, they can eliminate dental plaque through regular brushing, if the situation is more serious, they can go to the hospital for scaling and other ways to remove. It is recommended that children should pay attention to oral hygiene during the recovery process, try to avoid eating sweets, and if there are symptoms of physical discomfort, they should go to the hospital in a timely manner to consult the physician’s guidance.