Sudden headache, nausea and vomiting in women have various etiologies, mainly migraine, subarachnoid hemorrhage, venous sinus thrombosis, cerebral hemorrhage and intracranial infection, etc. The etiology needs to be clarified and active treatment given to improve the patient’s prognosis. The following conditions are common: 1. Migraine: The most common condition, migraine is a moderate to severe headache, and for young women it may also have some relationship with the physiological cycle. If around the time of the physiological cycle, a lot of women may have migraines, which can manifest as a severe throbbing-like headache on one side. Some patients may have a visual aura prior to the onset of migraine, which may be followed by headache, nausea, and desire to vomit. Migraine may occur with some regularity in some people, and specific drugs for migraine can be used. Women with more frequent attacks can also consider using drugs that have a preventive effect on migraine for treatment; 2. Subarachnoid hemorrhage: If sudden headache, nausea and vomiting occur in the course of activity and the headache is more intense, like splitting-like headache, this If you have a sudden subarachnoid hemorrhage, you should be alert to the possibility of a sudden subarachnoid hemorrhage. The most common cause of subarachnoid hemorrhage is aneurysm, which is most often seen in young people. If re-rupture of aneurysm occurs, the mortality rate is high, and timely treatment should be given; 3. Venous sinus thrombosis: If a woman has headache, nausea and vomiting during breastfeeding, i.e. during the puerperium, or during pregnancy, it is important to consider whether there is venous sinus thrombosis. Especially for women in the puerperium, the blood may be in a hypercoagulable state, and in this case, if there is venous sinus thrombosis, there will also be headache, nausea and vomiting, and it is necessary to improve the relevant imaging examination to further clarify; 4. 5. Intracranial infection: If there is headache, nausea, vomiting, accompanied by fever, it can also be seen as intracranial infection, and if necessary, it may be necessary to improve the lumbar puncture examination to clarify whether there is encephalitis or meningitis. In this case, in addition to headache, nausea and vomiting, there may also be signs of meningeal irritation, fever and other signs that suggest infection. 6. Neurotic or tension headache: Neurotic headache is usually caused by irregular life, inordinate smoking and drinking, and lack of sleep, and patients may have dull and swelling pain in the head, accompanied by a girdle-like tightness. Tension headache is mainly caused by emotional discomfort such as anxiety or depression, the headache site is variable, and a few patients have symptoms such as dizziness, insomnia, anxiety or depression; 7. Viral cold: After the appearance of viral cold, if not actively treated and the condition is aggravated, patients may have nasal congestion, poor breathing, which in turn leads to headache, cough and weakness; 8. Pregnancy reaction: If women have unprotected sex Suspected of early pregnancy, headache, nausea and vomiting may be early pregnancy reaction, and it is recommended to go to the hospital for blood HCG and ultrasound to confirm the diagnosis.