Swollen leg joints may be caused by the following reasons: 1. Patients stand for a long time and maintain the same posture, resulting in poor blood circulation in the leg joints and no effective activity, which may lead to joint swelling. The phenomenon may also occur when the patient has been engaged in physical labor for a long time and the leg joints are subjected to excessive pressure and soft tissue damage. 2. The phenomenon of swollen leg joints may also occur when the patient has deep vein thrombosis in the joints due to impaired venous return. 3. If the patient’s leg joints are swollen, he or she may also experience swelling. After this condition, it is recommended that the patient rest more, but also with acupuncture, physical therapy and other methods of Chinese medicine, it is best to go to the hospital to take pictures to check, and then cooperate with the doctor’s treatment.