Just as with treatment, recovery time depends on the type of injury and its severity. Mild injuries might require a few weeks to heal, while severely damaged elbows will take months. Elbow fractures typically take 6 to 8 weeks to heal completely. When it comes to a tennis elbow, you will see the effects of treatment in about 1-3 weeks. Following a physical examination, your doctor will determine the severity of the injury, develop a treatment plan, and inform you of the length of treatment.