Tooth extraction in general will not affect menstruation (period), only in the extraction process of extreme tension, fear, resulting in a rise in systemic hormone levels may affect menstruation, and tooth extraction should be avoided during menstruation. 1. The extraction process is generally the application of local anesthesia drugs to anesthetize the gums and periodontal membrane of the surgical area, and then use the appropriate instruments to remove the teeth. The whole process will not affect menstruation, but some people are afraid of tooth extraction, which leads to excessive tension and increase of systemic hormone levels, thus delaying menstruation. 2. It is forbidden to extract teeth during menstruation, during menstruation, due to the body’s resistance will decline, hormone level disorders, and the body’s blood is more difficult to coagulate than usual, therefore, female patients should avoid extracting teeth during menstruation, menstruation coagulation function and worse than usual, extracting teeth is easy to cause persistent bleeding. In short, tooth extraction generally does not affect menstruation, but before the extraction of teeth to maintain relaxation, do not excessive tension and anxiety.