Sometimes feel to want to faint suddenly what reason is

summary

During my college years, I often had the phenomenon of sudden fainting, especially in summer. I was very worried about it. After going to the hospital for examination, the doctor gave a detailed explanation of the cause of sudden dizziness. Now I'd like to talk with you about the cause of sometimes feeling sudden fainting.

Sometimes feel to want to faint suddenly what reason is

First, rotational vertigo can be divided into peripheral vertigo and central vertigo according to its etiology. Peripheral vertigo: refers to the inner ear labyrinth or vestibular nerve lesions caused by vertigo. Common in Meniere's disease, labyrinthitis, drug-induced vertigo and vestibular neuritis. Central vertigo: refers to the brain stem, cerebellum, brain and spinal cord lesions caused by vertigo. Common in vertebrobasilar insufficiency, intracranial tumor, intracranial infection, multiple sclerosis, vertigo epilepsy and traumatic vertigo.

Second: high blood viscosity, hyperlipidemia, thrombocytosis can make blood viscosity high, blood flow slow, resulting in sufficient blood supply to the brain, prone to fatigue, dizziness, fatigue and other symptoms. There are many reasons for hyperlipidemia, the most important of which is the unreasonable diet structure. Patients with cerebral arteriosclerosis are conscious of dizziness, and often suffer from insomnia, tinnitus, emotional instability, forgetfulness and numbness of limbs. Cerebral arteriosclerosis makes the inner diameter of blood vessels smaller, the blood flow in the brain decreases, resulting in insufficient blood and oxygen supply to the brain, causing dizziness.

Third: cervical spondylosis often occurs neck tightness, limited flexibility, occasional pain, numbness of fingers, cold, heavy feeling. The main reason of dizziness is that cervical vertebra hyperplasia compresses cervical vertebral artery, which results in insufficient blood supply to brain. In addition to dizziness, hypertension patients are often accompanied by dizziness, palpitation, irritability, tinnitus, insomnia and other discomfort. In the early stage of coronary heart disease, some people may feel headache, dizziness, weakness of limbs, difficulty in concentration, etc. It is mainly due to coronary atherosclerosis, resulting in insufficient blood supply and dizziness.

matters needing attention

Dizziness may be more common. Many patients with dizziness feel good after lying for a while and think that there is no serious disease. However, this situation often occurs. We should not delay time. We must go to the hospital in time to find out the cause and take medicine according to the doctor's advice, so as to control our own condition.