The knee is the largest joint in the body (and one of the most complex), meaning it’s also one of the most problem-prone. While knee strengthening exercises can help keep the joint in tip-top shape, ...

Of all causes, overuse is the most common reason for an infused knee. Fluid buildup is your body’s way of protecting the area from extra damage. You may have minor swelling after a vigorous activity.

Arthritis in general is defined as damage to cartilage, the connective tissue that cushions joints, explains Jeffrey Zarin, M.D., an orthopedic surgeon at Cedars-Sinai Kerlan-Jobe Institute. “Think of ...

Your knee contains articular cartilage, which lines your bones and allows you to move without pain or friction. Knee cartilage damage occurs when your articular cartilage chips or wears away. In ...

Any pain or discomfort in the knee shouldn’t be ignored, especially if it’s persistent or recurring. It may indicate an ...

Knee pain affects so many injured runners. Here are the top 8 methods to help relieve knee pain effectively that you may not ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Working out can wear down joints—especially knees. Knee-strengthening exercises sometimes help, but ...

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 ...

For millions, a persistent ache in the knee is the first sign that something deeper is wrong – a slow loss of movement that can make walking, climbing stairs or even standing painful. In most cases, ...