Whether it occurs after an injury or not, knee pain can have a variety of causes. In some cases, the pain can be treated at home with a few simple reflexes. If the pain is very acute or lasts a long time, consultation becomes the only option.
Knee pain after injury
If the pain is felt after overstretching or twisting the knee, it is likely a sprain. Pain that occurs between the kneecap and the tibia, often caused by running, may be due to tendonitis.
If the knee is unstable, it is difficult to straighten, it may be a tear in a ligament or a meniscus. Finally, if the patella changes shape after a collision or a sudden change of direction, it is probably a dislocation of the patella.
Knee pain without prior injury
Pain and stiffness in both knees, slight swelling, especially in older people, suggests osteoarthritis. If the knee feels warm and red, and bends or tenders painfully, it may be bursitis or synovium effusion. Finally, if the knee is red and hot, the pain is intense and sudden, it is possibly gout.
The diagnosis of knee pain
The questioning of the patient makes it possible to identify whether or not the pain is the result of an injury, even a slight one. The physical examination makes it possible to inspect the knee: is it swollen, painful, sensitive, hot, does it present bruises? Are knee movements possible? If so, are they painful? In different situations, the use of medical imaging is essential.