Headache after crying is mainly due to the following reasons: 1. Emotional excitement can lead to disorders of the plant nerves, sympathetic hyperexcitation leads to tachycardia and elevated blood pressure, which increases cerebral blood flow, resulting in increased intracranial pressure and headache symptoms. The headache is often located near the temples, and the headache is vascular pulsation-like, and the patient may also have nausea, vomiting and other symptoms. 3. Acute cerebrovascular disease, cerebral infarction and cerebral hemorrhage are often triggered by emotional excitement. If necessary, head imaging should be performed, and patients with confirmed cerebral infarction and cerebral hemorrhage should be hospitalized.