Trembling

Introduction Trembling is a regular and repetitive involuntary body shake that can occur throughout the body, but with multiple limbs. The amplitude can be large or small, and the speed can be fast or slow, usually between 1 and 10 times per second. It occurs in all ages, but the greater the age, the more severe the tremor will occur, mainly in the hands, often in the head, and even the sound is shaking. It is especially noticeable when the hands are in a fixed position or in a fine movement, and is relieved at rest, and some patients will be less trembled after drinking. The course of this tremor is slowly deteriorating and no other neurological symptoms occur.

Cause

Physical or hereditary tremor

It occurs in all ages, but the greater the age, the more severe the tremor will occur, mainly in the hands, often in the head, and even the sound is shaking. It is especially noticeable when the hands are in a fixed position or in a fine movement, and is relieved at rest, and some patients will be less trembled after drinking. The course of this tremor is slowly worsening and does not cause other neurological symptoms.

Tremble of Parkinson's disease

Occurred in middle-aged and old, mainly in the hands and feet, especially at rest, will be relieved when doing movements, this feature is contrary to physical or hereditary tremors, the course of disease continues to deteriorate, and with other Parkinson's disease Nervous system symptoms.

Trembling caused by cerebellar lesions

This tremor is caused by cerebellar lesions and is characterized by no or very slight rest at rest, mild when maintaining a fixed posture, but particularly noticeable when approaching the target, and with other cerebellar symptoms such as balance disorders.

an examination

Related inspection

Cerebrospinal fluid leucine-enkephalin cranial nerve examination EEG examination brain MRI examination

Physiological jitter is small and fast, and occurs mostly at rest. It is a small, fast, irregular jitter. Physiological tremors often occur in situations of mental stress, fear, emotional agitation, severe pain, and extreme fatigue. Once the above-mentioned causes of hand shake are eliminated, the hand shake disappears.

Pathological tremor, medically known as "tremor", refers to the involuntary vibration of the hand, often permanent. Mainly divided into two types of static tremor and exercise tremor. The static tremor is the shaking of the muscles in the state of complete relaxation, that is, in a quiet state. This kind of tremor can disappear when sleeping, and the hand-shake speed is 4-6 times/second. It is more regular, typical diseases such as Parkinson's syndrome. Exercise tremor is the only tremor that occurs during exercise, and the jitter increases as the motion approaches the target. If the doctor gives the patient a finger-nose test, the patient should straighten the forearm and then use the index finger to point to the tip of his nose. The closer the tip of the index finger is to the tip of the nose, the more obvious the hand shakes. Exercise tremors are irregular, have large amplitudes of vibration, and are enhanced by emotions. They are common in the lesions of the cranial nerves and upper limbs.

Differential diagnosis

1. Physiological tremor: It is a normal physiological phenomenon rather than a disease. The trembling pattern is small and fast. Normal people have such tremor but are not obvious and unconscious. In some cases, physiological tremor will be strengthened and become Severe and obvious, the common causes of strengthening physical tremor are as follows: emotional fear, cold hypoglycemia, hyperthyroidism, alcohol or drug withdrawal symptoms, drugs or caffeine, the highest proportion of all trembling The cause of this kind of tremor is unknown. It is generally considered to be related to personal physique. Half of them have a family history, so this tremor has a great relationship with heredity.

2. Physical or hereditary tremor: occurs in all ages, but the greater the age, the greater the degree of tremor, mainly in the hands, often in the head, and even the voice trembles, maintaining a fixed posture or fine in both hands It is especially noticeable during exercise, and it is relieved during rest. Some patients will reduce the degree of tremor after drinking. The course of this tremor is slowly deteriorated, and other neurological symptoms will not occur.

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