Swollen, painful knees can have a wide variety of causes. In younger people, the most common causes are usually related to injury. They are often sustained while playing contact sports or games that require you to switch directions frequently and quickly. One common injury is damage to the anterior cruciate ligament. They are the tough fibers that connect bones, damage to it may cause destabilize the joint and cause it to hyper-extend, leading to complaints of pain and signs of swelling.

Torn cartilage is another common type of injury. When cartilage is torn, it disrupts the soft cushion that keeps your femur and your tibia from rubbing together. A similar type of injury is bursitis, which occurs when one or more of the fluid-filled sacs that protect the area are ruptured.

A final injury many athletes experience is a dislocated patella. This usually follows an injury to the ligaments or tendons that destabilize the complex. A dislocated patella sometimes resolves on its own. In most cases, however, a doctor will need to slide the kneecap back into place and use wraps or a brace to hold it steady until the underlying issue can heal.

A person may develop a condition called Septic Arthritis. This occurs when the region becomes infected. It usually invades the joint after traveling through the bloodstream from elsewhere in the body. It is not normally associated with an injury.

Finally, a cause of pain and swollen tissues is disease. Osteoarthritis, for instance, which erodes the cartilage that cushions the bones and can cause swelling to the area. This can be treated at an Osteo Relief Institute location without the use of surgery or visits to the hospital. Another type of Arthritis, rheumatoid, is an auto-immune disease. Instead of attacking invading viruses and bacteria, the immune system turns against the body itself.