Headache caused by toothache, usually because the toothache is more serious radiating pain, or trigeminal neuralgia. Acute pulpitis, clinically acute pulpitis after the emergence of acute pulpitis due to increased pressure in the pulp cavity, will cause periodontal stimulation, the emergence of toothache symptoms, acute pulpitis usually have night pain, temperature changes aggravate the pain, spontaneous pain, pain can not be localized, radiating pain. Sometimes the pain spreads to the buccal face. When the toothache is severe it may produce a pulling pain and therefore headache symptoms may occur. If there is wisdom tooth crown inflammation, it will make the local gums swollen and painful, if in the absence of timely targeted treatment, the aggravation of the condition may cause pericoronary abscess, bad breath, headache and other symptoms, toothache can cause headache symptoms. Trigeminal neuralgia: There are small pieces of skin or teeth are more sensitive, touching that causes large pain episodes, called “trigger points”. When the trigger point in the teeth, the eye branch of the trigeminal nerve innervated area is the eyebrow front temporal, can be manifested as a headache, eye pain, pain periodic attacks, long intervals, was a needle-like cut-like. When the symptoms appear, it is recommended to go to the hospital in time for examination, to clarify the cause of the disease, and to carry out targeted treatment as soon as possible to avoid aggravation of the condition, which will have a serious impact on the health as well as daily life.