Finger stabbing is very hard, can be caused by soft tissue injury, tendon ligament injury, bone injury and other factors. 1. Soft tissue injury: finger stabbing can lead to soft tissue injury, blood vessel rupture bleeding can occur local hematoma, inflammation, edema and other manifestations, hematoma can occur after mechanization of stiffness. 2. Tendon ligament injury: knife injury to the tendon ligament injury, local soft tissue contracture, adhesion can also occur, can also be accompanied by finger activity function is limited performance, and then the finger stiffness performance. 3. Bone injury: finger cuts lead to phalangeal fracture, local bleeding, inflammation, edema and other manifestations, displacement of the fracture end, resulting in hand pain with limited mobility, finger stiffness can occur. 4. Other: After any of the above injuries, scarring may occur, which may lead to stiffness of the fingers. If your fingers are stiff after a knife wound, you should consult a doctor in time, and under the guidance of a specialized doctor, you should actively carry out the appropriate treatment, which will help to alleviate the uncomfortable symptoms as soon as possible.