There are several reasons for having chills during menstruation: First, the level of sex hormones in the body changes greatly during menstruation, the body’s resistance is low, the body is weak, and it is easy to feel cold and chilly limbs. Secondly, women are cold due to the change in endocrine secretion in the body during menstruation, there is a large amount of blood discharge, resulting in lower body temperature. In addition, for women with symptoms of uterine cold, due to the usual cold caused by kidney Yang deficiency, when the resistance is low during menstruation, there will be coldness all over the body and accompanied by a feeling of weakness in the waist and knees. It is also important to consider the possibility of having a cold during menstruation, monitor the body temperature, and take antipyretic medication immediately if there are symptoms of high fever. It is recommended that women should pay attention to keeping warm during menstruation, especially the abdomen, to avoid getting cold, and drink brown sugar and ginger water when they get cold, which can achieve the purpose of driving away the cold.