Headaches caused by brain tumors, subdural hematomas, brain abscesses, and other occupying lesions are primarily caused in the early stages by the pulling and displacement of pain-sensitive structures adjacent to the lesion or by direct pressure on sensory nerves. In the later stage, the headache is caused by the obstruction of cerebrospinal fluid circulation pathway, which leads to the increase of intracranial pressure and the pulling, distortion and displacement of pain-sensitive structures away from the lesion. The initial headache is usually located on the same side of the lesion, and in the later stage, when the intracranial pressure increases, the headache becomes a diffuse deep persistent dull pain, which is heavier in the morning and worsens when coughing, stooling or sneezing, but it is usually not as serious as migraine or cerebrovascular rupture and bleeding. With the increase of the occupying lesion and intracranial pressure, the patient may experience vomiting and optic papillar edema, and finally visual loss or double vision due to secondary optic nerve atrophy. The diagnosis can be made on the basis of headache, vomiting and optic papillar edema, combined with progressive aggravation of localized signs and corresponding neuroimaging. 2.Medication (1) Etiological and symptomatic treatment of the primary disease. For example, if the intracranial hematoma is not suitable for surgical treatment due to its location and size, it should be treated conservatively by giving hemostasis, lowering cranial pressure, preventing and controlling infection, as well as giving sedative and analgesic. For intracranial tumors or metastases, if they are not suitable for surgical treatment, they can be treated with radiotherapy and chemotherapy. (2) Give supportive therapy to improve the body’s resistance. (3) In addition to surgical removal of abscess, brain abscess should be treated by active anti-infection and cranial pressure reduction, and pain relievers and supportive therapy should be applied appropriately. 3.Dietary care According to different symptoms, there are dietary requirements for different situations, so ask the doctor specifically and set different dietary standards for specific diseases. 4.Preventive care This disease and effective preventive measures, early detection and early treatment is the key to the prevention and treatment of this disease. 5.Pathogenesis Occupying lesions such as brain tumor, subdural hematoma, brain abscess, etc. compress neurovascular and cause clinical symptoms. 6.Diagnosis of disease Differentiate from other causes of headache, cranial CT shows occupying lesions, which can be differentiated. 7.Examination methods Do cranial CT or MRI to understand the location, size and metastasis of the lesion. 8.Complications Severe headache may be accompanied by nausea, vomiting and optic papillar edema, and finally, loss of vision or double vision due to secondary optic nerve atrophy.