If the damage to the forearm tendon is minor, it usually takes about 1 month to recover. If the damage is more serious, surgery is needed and recovery will take about 2 months after surgery. 1. If the injury to the forearm tendon is mild, recovery is less difficult and the patient should rest in bed, avoiding more activity on the affected area, and recuperate for about 1 month. 2. If the injury is more serious, it is more difficult to recover, you need to go to the hospital, you need to undergo surgery to achieve the therapeutic effect of suture, after surgery, you can recover in about 2 months. Patients with tendon injuries should pay attention to a certain amount of functional exercises under the guidance of the doctor during recovery, to avoid the long time of rest, resulting in muscle atrophy and stiffness, joint function degradation. If you suffer from forearm tendon injury, you should go to the hospital in time for treatment under the guidance of the doctor.