Feeling toothache during menstruation, there are two main reasons: First, estrogen secretion began to increase during puberty, the body’s hormone imbalance, before menstruation, if the teeth are subjected to hot and cold stimuli, for example, often drink cold beverages and eat too hot food, it is easy to cause congestion of the gums, swelling, pain, and in severe cases, there may also be bleeding, which usually lasts for a short period of time and is a transient seizure; Second, the secretion of estrogen during menstruation will stimulate the gums and periodontium, resulting in local vascular dilation. Estrogen will stimulate the gums, periodontal, resulting in local vasodilatation, if the original periodontitis and other diseases, menstruation pelvic easily congested, endometrial shedding more, increased blood volume, will cause inflammation through the nerve reflex attack. If you often eat too hard or spicy, hot food, it is easy to cause inflammation attacks and dental pain, menstruation should avoid cold, spicy diet, the pain is serious can take vitamin B under the guidance of the doctor to relieve.