The causes of headache include the head itself and systemic causes, mainly including: 1. colds are more common, colds cause headache is only one of the symptoms of colds, colds have chills, fever, cough, nasal congestion, runny nose. 2. vascular headache, vascular headache is a general category, such as migraine is one of the causes of vascular headache, vascular headache is mainly the spasm of blood vessels, is the excessive constriction of blood vessels or excessive expansion of cerebral blood vessels can cause headache. Vascular headaches are mainly caused by spasms of blood vessels, excessive constriction of blood vessels or excessive dilation of cerebral blood vessels, which can lead to headaches. The main characteristic of vascular headache is chronic, long-term recurrent attacks, treatment should be diagnosed by a doctor, cerebrovascular headache is a chronic, long-term process, so the treatment should be patient. 3, neurological headache, there are several nerves in the head and face, trigeminal neuralgia is more common, stubborn, linguopharyngeal neuralgia, occipital neuralgia, the characteristics of pain are recurrent, short, the nature of pain is twitching, burning sensation, pinching sensation or tugging sensation, The recurrent episodes are relatively short, but repeatedly, you should go to the hospital to find a doctor for treatment, acupuncture, Chinese medicine and western medicine will have some effect. 4, brain tumor, headache caused by brain tumor is gradually onset process gradually aggravated, can have headache, vomiting, hemiparesis, do CT or MRI can be found. There are also acute cerebrovascular diseases such as large cerebral infarction, cerebral hemorrhage, subarachnoid hemorrhage, which can also cause headache. If there is a sudden acute headache, you should go to the hospital in time to find a doctor and not delay the change of your condition.