This disease is an occupational disease of professionals who use their hands for a long time, and their friends are young and middle-aged. The specific reason is still unclear, and it is estimated that it is related to the degeneration of basal ganglia cells in the brain. It is closely related to mental factors (tension, fear, etc.). ).

2. Clinical manifestations

Clinically, it is common for professionals who have been engaged in fine manual operation for a long time, such as teachers, editors, secretaries, writers, painters, calligraphers, copywriters, draftsmen, typists, telegraphists, pianists and so on. Mainly manifested as inflexible and uncoordinated fingers; Spastic contraction of hand muscles or tremors of both hands or even tremors of the whole arm muscles hinder the function of both hands and prevent them from doing fine work; It is typical and intuitive to see that it is difficult to write, and the writing is crooked. In serious cases, it is impossible to write. This disease is often induced by physical fatigue (especially hand fatigue) or emotional tension. And the more nervous, the more afraid of bad handwriting, the more obvious the spasm. If you do other things that don't need careful operation with your hands, you will feel calm, easy to operate, and the degree of convulsions is very light, even without convulsions. Middle-aged and elderly people are prone to nervous system diseases such as Parkinson's disease or cerebellar ataxia, and may also have symptoms such as finger spasm or tremor after illness. Dysgraphia patients have quick thinking, no facial hemiplegia, normal fertility, no muscle atrophy, normal sensation, normal reflex and no abnormality in brain CT examination, so they are easy to distinguish from the above nervous system diseases.

3. Prevention and control strategies

(a) After working continuously for a period of time, rest your hands for a while; Or stop your fine work and let your hands have a rest in another job. Strengthen physical exercise, targeted exercise is to play fitness balls every day, which can dredge the blood in the hands, enhance the muscle function of the arms and regulate the function of the cerebral cortex.

(2) After the spasm symptoms of "insufficient hands" appear, the symptoms can be eliminated by self-massage. Massage your right hand and forearm with your left thenar; You can also add the middle finger or thumb of your left hand to the points of Gu, Quchi and Waiguan for 2 minutes each, depending on the degree of pain. You can also acupuncture Fengchi, Baihui, Hegu, Quchi, Waiguan, Neiguan and Zusanli for 15 minutes each time and 1-2 times a day. After these self-treatments of promoting blood circulation, dredging collaterals and relieving spasm, the symptoms will be eliminated soon.