About one in four adults experience chronic knee pain, though its prevalence continues to rise—even among younger people, ...

If you experience knee pain after sitting with your legs bent, it may be caused by arthritis, tendonitis, bursitis, or patellofemoral pain. If your knees hurt when sitting, it may be from sitting in ...

Knee pain affects millions of people worldwide, often interfering with daily activities such as walking, squatting, climbing stairs, and even getting in and out of the car. It is one of the most ...

Internal derangement of the knee (IDK) describes disorders affecting the knee joint. These can include a torn meniscus, loose bodies in the knee, cartilage damage, and damaged collateral or cruciate ...

No one who has experienced a serious knee injury and corresponding knee pain takes regaining mobility for granted. Whether pursuing athletic interests, recreational activities like cycling or jogging ...

Question: My son is a receiver on his high school football team. In that position, he is often jumping to make a catch or changing directions quickly as he runs routes or to avoid other players. At ...

Knee pain is the most common musculoskeletal complaint that brings people to the doctor. It affects about 25% of U.S. adults. Several different things can lead to knee pain, and the treatments for it ...

Septic arthritis of the knee involves a sudden, severe infection in one or both knee joints. Without treatment, it can impair mobility, lead to permanent damage, or even be fatal. Septic arthritis is ...

An 11-year-old boy presented with a 4-month history of swelling in the left knee joint. He had a knee injury 4 months earlier, which had required a puncture. The wound was crusted and healed.