The main reasons why patients feel dizzy and lightheaded at night are considered to be the following: firstly, if the patient has hypertensive disease, it should be considered to be caused by blood pressure. The second aspect is that if the patient is elderly and has cerebral arteriosclerosis, it should be considered to be caused by insufficient blood supply to the brain, which can be clarified by doing transcranial Doppler examination and using blood-stasis activating drugs to improve the symptoms, such as ginkgo biloba drip pills and blood plugging tablets; the third aspect is that the patient feels dizzy at night. Dizziness may also be due to fatigue or too much tension in the daytime life or work, resulting in the body and brain in a state of fatigue, easily causing patients to feel dizzy. But this kind of dizziness is generally not intense, mainly drowsiness is the main.