As you bend and straighten, you'll feel a swollen lump like a water balloon and pain behind your knee. If you're an avid runner, that mileage could be to blame.

Popliteal artery entrapment syndrome (PAES) affects an artery behind the knee. Learn about symptoms and causes of the condition, treatment options, and more.

Knee pain comes in many forms. It can strike above or below the knee, on the kneecap itself, behind the knee or on the inner or outer side of the knee. The joint may feel swollen or stiff, or it ...

Septic arthritis of the knee can cause severe pain, swelling, and difficulty moving the joint. Treating symptoms usually involves antibiotics and other measures. Learn more.

Dr. Carrie Jose, in her latest Health and Wellness, gives three signs it may something else if your hamstring isn’t healing ...

Knee pain is often caused by trauma – such as injuring yourself while playing a sport or at work, particularly if it’s manual or strenuous labour. (damage to the cartilage inside the knee) and ...

A knee brace appears to be one of the more effective ways to treat the pain - as well as improve function and stiffness - from osteoarthritis, the common degenerative process where the cartilage ...