With 1-3 treatments, the patient’s pain symptoms can be relieved and eliminated in about 1-2 weeks. If the patient does not rest properly or still keeps on exercising, there will be strain on the elbow joint and the symptoms will recur during this period. After acupuncture knife treatment, the patient should rest, avoid the affected side of the limb weight-bearing, excessive force will affect the effect of acupuncture knife treatment. Later on, if the patient cooperates with the rehabilitation function exercise to consolidate the effect of needle knife treatment, the effect will be better. The effect of needle knife treatment of tennis elbow not only depends on the needle knife treatment itself, the patient also needs to cooperate with the doctor, including the rehabilitation of functional exercises in the later stage.