You can bite a sterile cotton ball to stop bleeding.
If the trauma knocked out the tooth, bleeding, available cotton ball first pressure to stop bleeding, drink out of the tooth, knocked out the tooth first into the pure water, and need to immediately consult a doctor to do the treatment of the wound, according to the situation can be carried out after dental reimplantation surgery, try to retain the affected teeth.
Periodontitis loosening caused by the teeth fall out of their own bleeding, you can use aseptic cotton balls, pressure on the wound, to be 30 minutes to spit out can be.
Bleeding caused by tooth extraction can also be stopped at home by using a sterile cotton ball and then pressing on the wound and spitting it out after 30~60 minutes. Please note that ice can be used to apply cold compresses intermittently for 24 hours to minimize post-operative reactions and bleeding.
Bleeding from a lost tooth requires prompt medical attention, examination and treatment under the guidance of a doctor to avoid delays.