There are many possible causes. Patients with dizziness should have a detailed medical history and a comprehensive physical examination. If necessary, a hearing test, vestibular function test, fundus examination, and appropriate cerebrospinal fluid examination and head examination should be performed. Or cervical spine X-ray photography, electrocardiogram, electroencephalogram and brain CT scan to find out the cause.
The following common causes of dizziness are:
1. Nervous system diseases
Such as cerebral ischemic lesions, cerebellar lesions, brain lesions, and brain trauma , certain types of epilepsy, etc. In addition, patients with autonomic nerve dysfunction and certain neuroses often feel dizzy.
2. Ear diseases
For example, diseases in the ears may affect balance and cause dizziness.
3. Internal medicine diseases
Such as hypertension, hypotension, various cardiovascular and cerebrovascular diseases, anemia, infection, poisoning, hypoglycemia, etc.
4. Cold
Sometimes a cold may cause dizziness.
5. Degeneration of cervical vertebrae
Due to long-term posture or poor sleeping posture, cervical vertebrae proliferate, deform, and degenerate, neck muscles tighten, and arterial blood supply is blocked, resulting in insufficient blood supply to the brain. This is The main cause of dizziness. There is often tightness in the neck, limited flexibility, occasional pain, numbness and coldness in the scalp and fingers, shoulder pain, a feeling of heaviness, and even nausea, palpitation and other symptoms.
6. Anemia
If you experience dizziness, fatigue, and pale complexion, the possibility of anemia should be considered. Patients with dyspepsia, peptic ulcers, gastrointestinal bleeding, and chronic inflammatory diseases may develop secondary anemia.
7. High blood viscosity
Hyperlipidemia, thrombocythemia, etc. can increase blood viscosity and slow blood flow, resulting in insufficient blood supply to the brain and prone to fatigue, dizziness, and weakness. and other symptoms. The incidence of this type of disease is currently on the rise.
8. Cerebral arteriosclerosis
Patients feel dizzy and often suffer from insomnia, tinnitus, emotional instability, forgetfulness, and numbness in their limbs. Cerebral arteriosclerosis reduces the inner diameter of cerebral blood vessels and decreases blood flow in the brain, resulting in insufficient blood and oxygen supply to the brain, causing dizziness. The clinical characteristics are dizziness, sleep disorders, and memory loss, as well as parietal and occipital headaches, paresis, speech impairment, and emotional agitation. The disease generally develops slowly. The characteristic of this type of dizziness is that it tends to occur or occur during body changes. Aggravated.
9. Heart disease and coronary heart disease
In the early stages of the disease, the symptoms are still mild. Some people may not have obvious discomforts such as chest tightness, palpitations, shortness of breath, etc., but only feel headache, dizziness, weakness in limbs, and mental fatigue. Difficulty concentrating, tinnitus or forgetfulness, etc. Heart diseases such as cardiac arrest, paroxysmal tachycardia, paroxysmal atrial fibrillation, and ventricular fibrillation can lead to acute cerebral ischemia, causing dizziness, vertigo, stomach discomfort, syncope, etc.
10. Drug poisoning
Poisoning by streptomycin, neomycin, kanamycin, gentamicin, etc. is most common. In addition to dizziness, patients also suffer from vertigo and sensorineural deafness caused by damage to the cochlear nerve. Chronic lead poisoning often manifests as neurasthenic syndrome, with dizziness, headache, insomnia, forgetfulness, fatigue, and dreaminess as the main symptoms, as well as hypothermia, loss of appetite, etc.
11. Functional hypoglycemia
It can also cause dizziness, palpitation, and weakness. There may be tremors on an empty stomach or when exerting force, and sometimes convulsions and loss of consciousness may occur. When you are emotionally stressed or hyperventilating, respiratory alkalosis may occur due to increased carbon dioxide emissions. Brain cells are hypoxic, causing dizziness and fatigue. The patient may also feel numbness in the face, hands and feet, and sometimes a sense of trance.
12. Vasoinhibitory dizziness
It is often triggered by emotional stress, pain, fear, bleeding, hot weather, fatigue, cavity, insomnia, etc. Patients often experience autonomic nervous system disorders such as dizziness, vertigo, nausea, upper abdominal discomfort, pale complexion, cold sweats, etc. At that time, the blood pressure dropped and the pulse was weak. Vasoinhibitory dizziness is more common in frail young women. Orthostatic hypotension refers to dizziness, dizziness, weak legs, dizziness, or even syncope when standing, often accompanied by anhydrosis and difficulty in defecation and defecation.
Dizziness-Baidu Encyclopedia