1. the location of the headache; 2. the nature of the headache; 3. the headache degree scoring method assessment, such as 0 means no pain at all and 10 is the most painful; 4. the duration of the headache, medical history, frequency of headache attacks; 5. accompanying symptoms such as nausea, vomiting, fear of light, fear of sound, etc.; 6. other related factors: relatives also often have headache symptoms. Patients who rely on painkillers for a long time should even tell the doctor the type and dosage of the drugs they usually take to facilitate diagnosis and treatment.