The patient’s headache and nausea but not high blood pressure, indicating that the patient’s symptoms are not related to blood pressure, headache and nausea clinically is a very common symptom, the cause of many aspects. If you want to clarify the patient’s headache, nausea is how, should be for the patient’s causative factors related to the examination and analysis of the nature of the headache. The first aspect, if the patient’s headache manifests itself as one side or both sides of the head recurrent throbbing, throbbing-like pain, considering that it is caused by migraine. Secondly, if the patient’s headache persists and progresses gradually, it is considered to be caused by intracranial tumors and other intracranial occupying factors. Thirdly, if the headache and nausea appear suddenly under the condition of activity or emotional excitement, it is considered to be caused by subarachnoid hemorrhage and other serious diseases, and the patient should consult the hospital for diagnosis and treatment in time.