Osteoarthritis caused by calf belly soreness has more reasons, some cases can disappear after treatment. Osteoarthritis causes soreness and swelling of the calf, the cause is considered to be osteoarthritis when the back of the knee joint is larger bone compression of blood vessels and nerves in the back of the knee joint, or the knee joint is swollen and fluid accumulation, which stimulates blood vessels and nerves in the popliteal fossa. It is also possible that osteoarthritis of the knee affects daily walking and causes slower blood circulation, leading to a buildup of acidic metabolites after exercise and soreness in the lower legs. Osteoarthritis of the knee joint for which there is fluid formation, a puncture of the joint cavity to extract the fluid can be performed. If the arthritis is severe and the bony encumbrances are large, arthroscopic surgery is feasible to remove them. If the pain continues to worsen and the stiffness of the joint interferes with movement, joint replacement may be considered. Usually, the symptoms of calf soreness can be improved or disappear after the treatment of the cause. Osteoarthritis-induced calf soreness is recommended to be treated under the guidance of a physician.