Old bleeding after tooth extraction can choose to carry out local pressure hemostasis or suture hemostasis, to avoid the symptoms worsening. 1. local pressure hemostasis, old bleeding after tooth extraction, it is best to timely local pressure hemostasis, so as not to lead to bleeding becomes more serious, you can use gauze or cotton ball pressure hemostasis, general bite about 30 ~ 40 minutes can be. 2. Suture hemostasis, if the bleeding is more serious, need to seek medical attention to identify the cause, if the wound is torn need to suture hemostasis. Usually pull teeth must choose the regular hospital, before the extraction of the best blood test, after the extraction of the teeth to do postoperative care, if you find that there are abnormalities, you need to consult a doctor in a timely manner.