What exactly should be done about hand dysfunction after a stroke? Each patient’s condition varies in severity, the nature of the brain infarction or brain hemorrhage, the size of the lesion, and the duration of the rehabilitation intervention, which can lead to different outcomes. There are many ways to evaluate hand function, among which the more important ones are the assessment of the spasticity of hand muscles and the assessment of hand motor function. Here is a brief description of the following: 1. Hand muscle spasticity assessment Hand muscle spasticity, including wrist, fingers and thumb three parts. The degree of resistance (or stiffness) felt when moving the patient’s hand with the healthy hand: (1) Mild increase in muscle tone: when the affected hand is passively extended and flexed, there is resistance or sudden jamming when the range of motion of the joint is at the end. (2) Mildly increased muscle tone: Sudden jamming in the second 50% of the joint range of motion, followed by minimal resistance in the second 50% of the joint range of motion. (3) More pronounced increase in muscle tone: The muscle tone increases significantly through most of the range of motion of the joint, but the affected part can still move easily. (4) Severe increase in muscle tone: difficulty with passive movement. (5) Stiffness: The affected part is completely immobile during passive flexion and extension. The motor assessment of hand function is usually divided into the following stages according to the recovery situation: (1) Flaccid phase: weakness of the hand including the fingers. (2) Micromotor phase: A few micro movements of active finger flexion can occur in this phase, but no extension. (3) Overall grip phase: The hand can appear hooked grip as a whole but cannot be relaxed; there is no finger straightening movement. (4) Pre-functional recovery period: the hand begins to show lateral pinching movements, and there can be slight release movements of the thumb; semi-random weak straightening movements of the fingers (small angle micro-movements) Although there are weak extension micro-movements of the fingers in this period, they do not allow functional activities. (5) Functional recovery period: overall hand grasp is possible, for example, there is cylindrical or ball-shaped grasp, although the movement performance is clumsy and the hand function is limited; however, there is random overall finger extension. (6) Functional phase: All grasping patterns are under the patient’s active control.