Whether anemia can be extracted depends on the hemoglobin level in the blood, generally hemoglobin above 80g/L can be extracted. Anemia is not an absolute contraindication to tooth extraction. If the anemia is mild, tooth extraction is possible; i.e., if the hemoglobin level in the routine blood test is not less than 80g/L, tooth extraction can be carried out under the operation of a professional physician. However, if the anemia is moderate to severe, it is a contraindication to tooth extraction, and before tooth extraction, it is necessary to consult the hematology department for the treatment of anemia; only when the hemoglobin and other indexes reach the standard of tooth extraction can the tooth extraction be carried out. In addition, pernicious anemia such as leukemia and aplastic anemia cannot be extracted.