When the temples hurt when chewing something, consider the following factors: First, eating too hard food has caused fatigue of the temporalis muscle in the masticatory muscles. Second, temporomandibular joint disorder, when chewing something, the temporomandibular joint including the temple pain. Third, there is a case of pulpitis, and when chewing food, it may cause an attack of pulpitis, resulting in radiating pain in the ipsilateral auriculotemporal region. Fourth, there may be a primary headache with various causes, including having high blood pressure, low blood pressure, fatigue, lack of sleep, drinking too much alcohol, or nerve irritation, or it may be caused by increased intracranial pressure or trauma.