It is normal to have a small amount of bleeding in your teeth after scaling, so you do not need to worry too much. When brushing your teeth, you should pay attention to the fact that you can temporarily refrain from brushing your teeth for 1 day after you have just had your teeth cleaned to avoid stimulation of the gums that may cause them to bleed. You need to pay attention to the diet must be light, never eat spicy and stimulating food, if you eat spicy and stimulating food, it is more detrimental to the healing of bleeding gums. You should eat a diet of thin rice, green vegetables, steamed buns and fresh fruits and vegetables as the main food. If you have bleeding after scaling, you can take anti-inflammatory medications such as amoxicillin or metronidazole orally to prevent infection from bleeding after scaling. If the teeth bleed within 2-3 days after scaling, and the bleeding is heavy, it is necessary to go to the hospital for medical treatment.