Slightly tender knee joints, but no pain, can be treated by the following methods: first, manipulative therapy, the patient is sitting flat, popliteal fossa under the pad, the operator can be used alone or alternately kneading, kneading, pressure, percussion, shaking method, flicking method and other methods of manipulative therapy, to relax the lower limbs of the tense, stiff, spasmodic muscles to the point of relaxation; second, physiotherapy, ultrashort-wave, microwave, pulsed magnetic therapy, wax therapy, direct current Second, physiotherapy, ultrashort wave, microwave, pulse magnetic therapy, wax therapy, direct current, herbal medicine introduction, etc., once a day, can promote the local inflammatory response to subside; third, the grinding method, one hand thumb pressure on the edge of the patellofemoral cartilage pain points; the other thumb pressure on the back of the fore thumb, repeated flexion and extension of the knee joint 50-100 times, in order to the degree of the patient has a painful sensation, 1-3 days as a time, a course of treatment for 15 days.