Road walking more knee pain, should be alert to the occurrence of some diseases, such as osteoarthritis, synovitis, meniscus injury, etc., it is recommended to consult a doctor in a timely manner to identify the cause of the disease. 1. Osteoarthritis: mostly seen in obese overweight middle-aged and elderly people, with age, knee cartilage degeneration, or obesity to make the joints fibrosis and other factors, the patient can appear joint pain and pressure, to the hip, knee and interphalangeal joints are the most common, walking for a long time, there will be a significant pain in the knee, and the cold, wet environment can aggravate the pain. 2. Synovitis: synovitis of the knee joint is a typical disease, walking for a long time, so that the joint movement is excessive, the joint surface is subjected to multiple impacts, synovial tissue congestion and edema, which can lead to synovitis attacks. Patients may experience symptoms of knee pain and swelling. With the development of the disease, joint adhesion can also occur, affecting the function of knee joint activities. 3. Meniscus injury: Meniscus rupture caused by rotational force, extrusion, meniscus disease and other factors, mainly manifested as severe pain in the knee joint, inability to straighten, swelling, and sometimes blood accumulation in the joint. The symptoms of knee pain after walking too much, patients should go to the orthopedic department of the hospital in time for consultation and treatment. At the same time, the daily need to pay attention to the knee joint warmth, avoid excessive exercise, so as not to aggravate the condition.