Behind-the-knee pain could be due to muscle strain or arthritis—or something far more serious. Orthopedic experts say these are the most common causes.

I can only walk to the mailbox, and I’m in a lot of pain. -- J.E. ANSWER: A Baker’s cyst is a fluid-filled sac behind the knee. In older adults, they are nearly always a result of knee damage.

Dr. Carrie Jose, in her latest Health and Wellness column, discusses the top causes of knee pain, and how to get lasting, and ...

ACL injuries are alarmingly common among professional athletes engaged in high-intensity sports like football and basketball. The knee joint is under continuous stress from abrupt stops, turns, and ...

A.C. ANSWER: In my opinion, the first thing you need is a diagnosis of what’s causing your knee pain. Although osteoarthritis is a very common cause of back and knee pain, oral steroids like ...