Old cold leg generally refers to knee osteoarthritis, mainly due to degeneration of knee cartilage, synovial membrane hyperplasia, the secretion of synovial fluid is reduced, in the cold weather conditions, cold stimulation and thus caused by the knee joint activity inconvenience, swelling, pain and other symptoms. Usually, Chinese massage, acupuncture, moxibustion, physical therapy, medication and other ways of conservative treatment, but for more serious lesions, may need to follow the doctor’s instructions for surgical treatment, in order to alleviate the discomfort as soon as possible. 1, Physical therapy: infrared light, cold therapy, ultrashort-wave therapy and other physical therapy can be given in accordance with the doctor’s instructions, and at the same time can be supplemented by the application of massage, acupuncture, etc., to promote local blood circulation, reduce inflammation, and reduce blood circulation. Physiotherapy: Physiotherapy such as infrared ray, cold therapy and ultrashort wave therapy can be given as prescribed by the doctor, while massage and acupuncture can be applied to promote local blood circulation and reduce inflammation, thus relieving the symptoms of knee pain; 2, medication: Oral non-steroidal anti-inflammatory drugs such as ibuprofen, diclofenac sodium and etoricoxib can be taken as prescribed by the doctor to alleviate the symptoms of knee pain. In addition, you can also follow the doctor’s instructions to apply the protection of articular cartilage drugs for treatment, such as glucosamine sulfate, bisacodyl, etc., to help slow down the degeneration of knee cartilage, knee pain has a certain auxiliary role in relieving; 3, surgical treatment: if the patient’s lesions are more serious, daily functional activities and life is seriously limited, you can also follow the doctor’s instructions for surgical treatment. You can choose minimally invasive arthroscopic surgical treatment, can also be applied to joint fusion, artificial joint replacement, etc., need to be assessed by the doctor to decide the patient’s specific situation. In addition, old cold leg knee pain patients, also often combined with osteoporosis, appropriate supplementation of calcium, vitamin D, also has a certain effect on the relief of pain, and at the same time in daily life to pay attention to keep warm, avoid cold, avoid standing for a long time. Functional exercises, such as quadriceps exercises, can increase muscle strength and help improve discomfort.