<s>[INST] My tooth has been hurting to floss on and off for a bit, when I flossed there today it bled a lot and I the part of the tooth closest to the blood was purple. Even after i washed the blood out its purple. What does that mean? [/INST] Hi, if the tooth is discolored, there may have been a trauma to the tooth resulting in pulp necrosis or pulp death. The surrounding gums may also be bleeding due to the same reason. The trauma may be mechanical, chemical, exposure to high temperature due to consumption of very hot foods. All these result in pulp and gum trauma. Please apply McCoppin ointment on the gums and consult a dentist to know about the treatment plan for the tooth. You may need root canal treatment with a crown for the tooth. Take care! </s>