Tooth grinding at night can be seen in a variety of situations, either in children or in adults. Children grinding teeth is generally related to growth and development, this situation is generally a normal physiological manifestation, if there is no obvious abnormal discomfort symptoms, generally do not need to deal with. This situation may also be caused by parasites, if there is abdominal pain or wasting and other symptoms, you need to go to the gastroenterology department for a clear examination, and then deworming treatment. Adult teeth grinding, can be seen in the mental tension caused, especially the recent stay up late fatigue, life is too much pressure and other factors, can cause the symptoms of grinding teeth at night, pay attention to relieve psychological stress, to develop regular habits of rest. This situation may also be caused by the abnormal structure of the teeth, due to the poor development of the structure, can lead to abnormal occlusion, can also appear the symptoms of grinding teeth.