Patients with headache and accompanied by nausea mainly consider migraine, cold, fever and other causes, as follows: First, migraine: If clinically patients are prone to recurrent headache, dizziness accompanied by headache and nausea, and it is mainly caused by one side of the head, mainly consider migraine. Patients are usually easily triggered by many factors, such as poor sleep, mental tension, and dietary stimulation. Second, cold and fever: Headache and nausea may also be caused by diseases such as cold and fever. Patients may have cold symptoms at the same time, such as having muscle aches and pains, or nasal congestion, runny nose, fever and other manifestations, often caused by physical, chemical and viral secretion of toxins stimulating the sensitive structures of the head.