Sudden pain and swelling of the knee may be due to acute synovitis, gout, synovitis and other causes.
1. Acute synovitis: If the warm-up is insufficient or the sudden force exceeds the tolerance range of the knee joint, it will lead to acute injury of the knee joint, acute synovitis, and synovial exudate effusion. It may lead to localized ligament strains. Then there will be symptoms such as pain and swelling in the knee area.
2. Gout: If the patient has gouty arthritis and other metabolic diseases, it may cause gouty attacks during daily meals and drinks or after eating seafood, and acute swelling and pain in the knee, accompanied by obvious redness, swelling, heat and pain, as well as elevated skin temperature and other conditions.
3. Osteoarthritis: patients may be due to degenerative disease, osteoarthritis can occur, in the cold or external stimulation, will lead to sudden swelling and pain symptoms, but also accompanied by obvious limitation of knee joint activities.
Sudden pain and swelling of the knee may also be caused by excessive exercise, arthritis, meniscus injury, gouty arthritis, rheumatoid arthritis and knee bone tumor. If the symptoms are serious, you should go to the hospital in time to see a doctor and give standardized treatment after the cause is clarified.