What causes shaking fingers?

Fingers are generally relatively calm, but once a new disease problem occurs in the fingers, various conditions of the fingers may become abnormal. Among them, finger trembling is a very common phenomenon. Excessive trembling fingers can have a great impact on people's lives. Therefore, people should pay attention to this. Let's take a look at what is going on with finger trembling?

Physiological hand tremors have small amplitudes and fast speeds, and often occur when the hand is stationary. They are small, fast, and irregular tremors. Physiological hand tremors often occur when one is nervous, fearful, etc. Hand tremors occur when you are emotionally excited, in severe pain, or extremely tired. Once the above causes of hand tremors are eliminated, the hand tremors will disappear.

Pathological hand tremor, medically known as "tremor", refers to the involuntary shaking of the hands, which is often permanent. There are two main types of hand tremors: static hand tremors and dynamic hand tremors. Among them, static hand tremor is the hand tremor that occurs when the muscles are completely relaxed, that is, in a quiet state. This type of hand tremor disappears during sleep, with a frequency of 4-6 times per second and is relatively regular. It is a typical disease such as Parkinson's syndrome. Sports tremor is a tremor that only occurs during exercise, and the tremor becomes more severe when the movement approaches the target. For example, when a doctor performs the finger-to-nose test on a patient, he asks the patient to straighten his forearm and then point his index finger at 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 tremor will be. Motor tremors are irregular, with large amplitudes, and are aggravated by emotions. They are common in lesions of the cranial nerves and upper limb nerves.

Finger formation:

Fingers are formed during the last three months of pregnancy, which is also the time when the baby's brain, sex organs, and heart are formed. The length of our fingers changes as we age, but the "finger ratio" always remains the same as when we are born. The relationship between finger length and hormones originates in the uterus: During the last three months of pregnancy, the amount of estrogen and testosterone secreted is much greater than at other times of pregnancy. The level of maternal hormones during this period will affect the child's future physical condition.