Women can have dental fillings during their menstrual period. The filling operation can be performed during menstruation, such as grinding off the decayed part of the tooth and then filling it with filling material, which usually causes only mild sensitivity and discomfort and can be tolerated by the patient. However, regardless of whether it is during menstruation or not, patients should pay attention to not eating spicy and stimulating food immediately after the filling treatment, pay attention to oral hygiene after eating, make sure to brush teeth at least every morning and evening, and develop good hygiene habits. In addition, if the pain persists or increases after the filling, it is necessary to promptly go to the dentistry department for a review to clarify the possibility of other diseases and to carry out targeted treatment to relieve the patient’s pain.