Tooth pain is not an absolute contraindication to tooth extraction. Whether a tooth can be extracted when it is painful depends mainly on the cause of the tooth pain. If the tooth pain is caused by tooth trauma or tooth fracture, the residual root needs to be extracted; if it is due to tooth nerve pain, such as tooth decay or pulpitis, the infection is confined to the pulp cavity and the periodontal tissues are not affected, extraction can also be performed; if the pain is caused by acute pericoronitis, acute alveolar abscess, periapical inflammation, etc., the extraction process may cause bacteria or infected material to enter the bloodstream due to the acute infection outside the tooth, causing transient bacteremia or hemolysis. If the pain is caused by acute pericoronitis, acute alveolar abscess, periapical infection, etc., the extraction process may cause bacteria or infected material to enter the bloodstream, causing transient bacteremia or hemolysis, so symptomatic treatment is usually recommended. In addition, patients with tooth pain can eat soft and easy-to-chew foods, such as noodles, white porridge, egg custard, etc. Avoid fried, hard, spicy and stimulating foods, hot and cold, sweet and sour foods, and focus on a light diet.