In clinical practice, calcification of the knee refers to the growth and degeneration of the bones in the knee joint, which is a manifestation of bone aging. Calcification of the knee can lead to osteoarthritis of the knee joint, which can cause pain and swelling in the knee joint, and in severe cases, deformation of the knee joint, and in some cases, limitation of knee flexion and extension. In the knee joint, the patient should first reduce the weight-bearing activities of the knee joint, and also pay attention to the local warmth, do not catch cold, in the knee joint area, can take hot compress treatment, orthopedic wash, give local Chinese medicine fumigation, or external application of blood circulation, blood stasis, and circulation ointment, but also with low frequency electrotherapy, microwave therapy and other treatment means, can play a significant relief of clinical symptoms The treatment can also be combined with medium and low frequency electrotherapy and microwave therapy, which can significantly relieve clinical symptoms.