Causes of head swelling include anxiety or depressive states, lack of sleep, colds, cervical spondylosis, hypertension and many other conditions. Patients are advised to seek medical advice to clarify the specific causes and make appropriate improvements for the causes. 1, anxiety or depressive state: if long-term anxiety, depression, depression, daytime mental tension, poor sleep at night, it is very easy to appear dizzy and swollen phenomenon; 2, lack of sleep: over fatigue, prolonged late night, etc., resulting in reduced deep sleep time, brain tissue has been in a state of neural excitation, consuming a lot of oxygen, resulting in brain tissue ischemia, hypoxia, resulting in a sense of head swelling; 3. Cold: cold and certain infectious diseases can lead to vasodilation and contraction dysfunction, and at the same time affect the function of nerves, causing vascular-neural headache, so most patients with cold will be accompanied by head distension at the same time; 4. Hypertension: high blood pressure causes increased cerebral perfusion pressure, leading to cerebral vascular spasm and transient narrowing of the vascular cavity, resulting in increased intracranial pressure causing head distension; 5. Cervical spondylosis: the spinal cord is connected to the nerves in the cranium, and when the nerve roots of the spinal cord in patients with cervical spondylosis are compressed or stimulated, it will easily trigger the soreness and swelling of the brain; 6, atherosclerosis: hyperlipidemia, diabetes, obesity and other causes are likely to lead to atherosclerosis of the cerebral arteries, which in turn leads to the formation of plaques in the cerebral vessels, thickening of the vessel walls, narrowing of the lumen, slowing of cerebral blood flow, causing ischemia and hypoxia in the brain, resulting in continuous head swelling 7, other cranio-cerebral diseases: such as intracranial tumors, hematomas, hydrocele and meningitis, can lead to head swelling.