Left side headache may be caused by cerebrovascular disease, intracranial infection, intracranial tumor, migraine, eye, ear and nose disorders.
1. Cerebrovascular disease. In case of cerebral hemorrhage, the compression of hematoma will lead to cerebral edema and increased cranial pressure, and then the patient may have a left-sided headache. Or due to cerebrovascular inflammation, such as temporal arteritis and other stimulation of the nerves, the above symptoms may also appear.
2. Intracranial infection: such as viral meningitis, bacterial meningitis and other diseases, due to infectious factors leading to intracranial edema, increased cranial pressure, may also appear left headache symptoms.
3. Intracranial tumor: such as meningioma, glioma and so on. Increased cranial pressure caused by tumor occupying lesions may lead to left-sided headache. The headache may be persistent, or accompanied by nausea and vomiting.
4. Migraine: the onset of this disease may cause pain in one or both temples, which is throbbing and aggravated in paroxysm, accompanied by nausea and vomiting, and sensitive to sound and light.
5. Eye, ear and nose diseases: such as glaucoma, otitis media, sinusitis. Inflammation stimulates the local nerves, which can spread to the left side of the head, resulting in left-sided headaches.
When the left side of the headache should be timely consultation, under the guidance of a professional doctor to improve the auxiliary examination to clarify the cause of the disease.