A little knee swelling can be caused by knee trauma, osteoarthritis of the knee, synovitis, rheumatoid arthritis and other factors.
1. Knee trauma: trauma can cause soft tissue damage to the knee joint, as well as knee fractures or dislocations, etc., can be triggered by traumatic synovitis of the knee joint, the synovial membrane at the increase in vascular permeability can lead to the production of local and accumulate a large amount of fluid in the knee joints, the knee can be swollen feeling.
2. Osteoarthritis of the knee: osteoarthritis of the knee can cause degeneration of the articular cartilage and a large amount of bone proliferation, the proliferation of bone stimulation of the synovial membrane to occur aseptic inflammation, stimulated by inflammatory substances can lead to joint effusion, which can be manifested as knee swelling and other discomforts.
3. Synovitis: knee synovitis is usually caused by joint injury or degenerative changes, it is a kind of inflammatory factor-mediated inflammatory response, the main symptoms include knee swelling, pain and activity limitation, also can be accompanied by elevated skin temperature and quadriceps muscle atrophy and other manifestations, can appear in the knee joint swelling.
4. Rheumatoid arthritis: rheumatoid involvement of the knee joint can cause arthritis, the pathological basis of which is the inflammatory reaction of the synovial membrane, which can cause swelling of the synovial membrane and joint cavity effusion, resulting in swelling of the knee joint, accompanied by passive and passive activity limitations.
When the knee feels swollen, it is necessary to consult a doctor in a timely manner, and the specialist will clarify the condition and then actively carry out appropriate treatment, which will help to alleviate the local discomfort symptoms as soon as possible.