The knee pain may be osteoarthritis of the knee joint. At this time we need to reduce the activity, reduce weight to reduce weight bearing, avoid strenuous activities, strengthen the warmth, you can apply heat, you can also use some Chinese medicine to activate blood circulation and remove blood stasis, you can also take oral anti-inflammatory and pain-relieving drugs, such as Fotarine, Ereximab. If the cartilage degeneration is accompanied by osteoarthritis, you can add glucosamine sulfate, and if necessary, you can perform joint cavity puncture and inject trimethoprim and sodium vitaminate to relieve cartilage degeneration and play a role in pain relief. In addition, knee joint pain may also be synovitis of the knee joint, at this time we need to pay attention to rest, affected limb braking, local heat, anti-inflammatory and pain relief symptomatic treatment, pain is more obvious can be closed to relieve pain, if necessary, arthroscopic minimally invasive surgery to explore, in order to clarify the cause, to obtain the effect of symptomatic treatment.