Elbow stiffness may be related to chronic strain, fracture, ligament injury of the elbow joint, etc. If it is caused by chronic strain or fracture it may be recovered, if it is caused by ligament injury it is very difficult to recover in 5 months. 1. Chronic strain injury: For example, some patients who have been engaged in elbow exertion work for a long time, such as long-term use of computer typing, or the use of mechanical vibration and other work can lead to stiffness of the elbow joint. At this time, appropriate activities should be carried out during work to relieve fatigue and stiffness. 2. Elbow fracture: Elbow stiffness can occur after elbow fracture, if the fracture is more serious and no treatment for 5 months, it is very difficult to recover; if the fracture is relatively light, just a crack, it can be recovered in about 5 months. During this period, you should avoid strenuous activities on the injured part to avoid causing secondary injury and aggravating the condition. 3. Ligament injury: elbow ligament injury is mainly caused by trauma, strenuous exercise, which can be manifested as severe pain, swelling around the elbow joint, and elbow joint stiffness, activity limitation. If left untreated, it can lead to joint dislocation, ligament laxity, and it is very difficult to return the elbow stiffness to normal in 5 months. If elbow stiffness is diagnosed, early and standardized treatment is recommended to minimize the adverse effects of the disease.