Knee squatting and getting up pain, but not when walking, there are generally the following reasons: 1, the early stage of osteoarthritis of the knee joint, then there will be knee squatting and getting up pain, but not when walking. At this time, X-ray examination should be carried out to further see whether there is osteophyte or there is the formation of bone capillaries around the knee joint.2, patellofemoral arthritis. Patellofemoral arthritis can cause knee pain when squatting because there is friction between the patella and the femur when squatting, which leads to knee pain.3, whether it is a meniscus injury. If the posterior horn of the meniscus is damaged, then there will be obvious pain when squatting, and the pain will be more obvious if the patient walks forward while squatting. So knee squatting, up pain and walking without pain generally have three reasons: first, osteoarthritis; second, patellofemoral arthritis; third, meniscus injury.