Hand trembling is a relatively common phenomenon that occurs in most people, but some people are more obvious and some are more serious, and there are many causes of hand trembling that need to be identified. The first is cerebral arteriosclerosis, this cause of hand trembling is usually relatively small, only when holding a pen and writing, the performance is more obvious, this type of cause will usually continue to aggravate with age. If you want to treat it well, you need to quit smoking and drinking in addition to treating the hardening of the blood vessels in order to achieve a root cause. It may also be a precursor to certain diseases, such as Parkinson’s disease, cerebellar lesions and other causes. The foci of such diseases are usually in the human brain and manifest mostly as uncontrolled shaking of the body. When this disease appears, you need to find out the cause, make timely treatment, and also need to prevent recurrence. Finally, it may be a psychological cause, which is usually a social psychological problem, when facing outsiders, there is usually anxiety, this time will be unconscious shaking, to relieve the pressure in the heart. When encountering this situation, do not worry too much, as long as you usually pay more attention to communication with people, to overcome the psychological tension can be. In short, hand shaking is caused by many reasons, it is best to consult a professional doctor to find out the cause of hand shaking and cooperate with the doctor, do not blindly treat.