If you want to exercise finger dexterity, you can improve it through finger muscle strength training, joint mobility training, and finger movement speed training. 1. Finger muscle strength training: you can usually use the fingers to pull the elastic band way, improve the strength of the finger muscles, which is conducive to improve the flexibility of the problem. 2. Joint mobility training: If you want to increase finger flexibility, you need to carry out finger joint mobility training, such as through passive activities with active contraction of the finger joints, to improve the range of finger movement, improve the local mobility, in order to increase flexibility. 3. Finger activity speed training: after the improvement of finger muscle strength and mobility, it is necessary to cooperate with the speed training, such as in the process of finger activity to continuously improve the speed of finger activity, so as to increase the flexibility of the finger. If there is a decrease in finger dexterity, you can go to the Department of Rehabilitation Medicine, under the guidance of the doctor, targeted hand function training, which will help promote the recovery of hand function.