What is the main reason for dizziness?

There are many possible reasons. For patients with dizziness, it is necessary to know the medical history in detail and conduct a comprehensive physical examination. If necessary, do hearing examination, vestibular function examination and fundus examination, and properly select cerebrospinal fluid examination, X-ray photography of head or cervical vertebra, electrocardiogram, electroencephalogram and brain CT scan to find out the cause.

The causes of dizziness are as follows:

1. Neuropathy

Such as cerebral ischemia, cerebellar lesion, brain injury, brain injury and some types of epilepsy. In addition, patients with autonomic nerve dysfunction and some neurosis often feel dizzy.

2. Ear diseases

If the disease in the ear affects the balance, it will lead to dizziness.

3. Internal diseases

Such as hypertension, hypotension, various cardiovascular and cerebrovascular diseases, anemia, infection, poisoning and hypoglycemia.

catch cold

Sometimes a cold may have symptoms of dizziness.

5. Cervical degeneration

Long-term bad posture or sleeping posture leads to cervical hyperplasia, deformation and degeneration, neck muscle contraction, arterial blood supply obstruction, leading to insufficient blood supply to the brain, which is the main cause of dizziness. Often neck tightness, limited flexibility, occasional pain, numbness of scalp and fingers, chills, shoulder pain, heavy feeling, and even accompanied by nausea, palpitations and other symptoms.

6. Anemia

If you have dizziness with fatigue and pale face, you should consider the possibility of anemia. Patients with dyspepsia, peptic ulcer, gastrointestinal bleeding and chronic inflammatory diseases can all suffer from anemia.

7. High blood viscosity

Hyperlipidemia and thrombocytosis can increase blood viscosity and slow blood flow, resulting in insufficient blood supply to the brain, which is prone to fatigue, dizziness, fatigue and other symptoms. At present, the incidence of this disease is on the rise.

8. Cerebral arteriosclerosis

Patients feel dizzy, and often suffer from insomnia, tinnitus, emotional instability, forgetfulness, numbness of limbs and other symptoms. Cerebral arteriosclerosis makes the inner diameter of cerebral vessels smaller, and the blood flow in the brain decreases, which leads to insufficient blood supply and oxygen supply to the brain, thus causing dizziness. The clinical manifestations are dizziness, sleep disorder and memory loss, as well as occipital headache, paraplegia and emotional excitement speech disorder. Generally, the disease develops slowly, and this dizziness is characterized by easy occurrence or aggravation when the body position changes.

9. Heart disease and coronary heart disease

At the beginning of the disease, the symptoms are still mild. Some people may not have obvious discomfort such as chest tightness, palpitation and shortness of breath, but only feel headache, dizziness, weakness of limbs, difficulty in concentration, tinnitus or forgetfulness. Heart diseases such as cardiac arrest, paroxysmal tachycardia, paroxysmal atrial fibrillation and ventricular fibrillation can lead to acute cerebral ischemia, accompanied by dizziness, dizziness, stomach upset and syncope.

10. Drug poisoning

Streptomycin, neomycin, kanamycin and gentamicin poisoning are common. In addition to dizziness, patients also have dizziness and sensorineural deafness caused by cochlear nerve injury. Chronic lead poisoning is mostly manifested as neurasthenia syndrome, with dizziness, headache, insomnia, forgetfulness, fatigue and dreaminess as the main symptoms, as well as hypothermia and anorexia.

1 1. Functional hypoglycemia

It can also cause dizziness, palpitation, weakness, tremor on an empty stomach or when exerting force, and sometimes convulsions and unconsciousness. When emotional tension or hyperventilation occurs, respiratory alkalosis and brain cell hypoxia may occur due to the increase of carbon dioxide output, causing dizziness and fatigue. Patients may feel numb in the face, hands and feet, and sometimes feel trance.

12. Vasoactive vertigo

Often due to emotional tension, pain, fear, bleeding, sultry weather, fatigue, tooth decay, insomnia and so on. Patients often have autonomic nervous dysfunction, such as dizziness, dizziness, nausea, epigastric discomfort, pale face, cold sweat and so on. At that time, the blood pressure dropped and the pulse was weak. Vasoactive vertigo is more common in weak young women. Orthostatic hypotension refers to dizziness, dizziness, leg weakness, dizziness and even syncope when standing, often accompanied by sweating and dysuria.

Dizziness-Baidu Encyclopedia