Knee arthritis is not allowed to sit on knees, it is easy to aggravate the condition, and this disease should pay attention to the protection of the knee joint. When people with knee arthritis sit on their knees, the pressure inside the knee joint will increase, and the cartilage meniscus will be excessively squeezed, leading to bleeding and fluid accumulation in the joint cavity, triggering knee swelling, pain, and aggravation of activity limitation, affecting the recovery of knee arthritis condition and affecting normal life. Therefore, people with knee arthritis should not sit on their knees. If you have knee osteoarthritis, pay attention to the protection of the joints, reduce the force on the knee joints, avoid excessive pressure or friction on the knee joints, and avoid excessive weight-bearing activities. Pay attention to joint warmth, avoid cold. Knee osteoarthritis should also be treated with medication as prescribed by the doctor to improve the symptoms, so as to avoid delaying the condition.