What Causes It?
Joint wear and tear - Over time, the cartilage in your joints breaks down, leading to osteoarthritis.
Age - The risk of osteoarthritis increases with age.
Gender - Women are more likely to develop osteoarthritis than men, especially after age 50.
Obesity - Excess weight puts additional stress on weight-bearing joints, such as your hips and knees.
Joint injuries - Injuries, such as those that occur during sports or accidents, can increase the risk of osteoarthritis.
Repeated stress on the joint - Jobs that involve repetitive stress on a particular joint may lead to osteoarthritis in that joint.
Genetics - Some people inherit a tendency to develop osteoarthritis.
Bone deformities - Some people are born with malformed joints or defective cartilage.
Certain metabolic diseases - These include diabetes and a condition in which your body has too much iron (hemochromatosis).
Previous joint surgery - Surgery to repair a joint injury can eventually lead to osteoarthritis in that joint.
Signs & Symptoms
Pain - Affected joints might hurt during or after movement.
Stiffness - Joint stiffness might be most noticeable upon awakening or after being inactive.
Tenderness - Your joint might feel tender when you apply light pressure to or near it.
Loss of flexibility - You might not be able to move your joint through its full range of motion.
Grating sensation - You might feel a grating sensation when you use the joint, and you might hear popping or crackling.
Bone spurs - These extra bits of bone, which feel like hard lumps, can form around the affected joint.
Swelling - This might be caused by soft tissue inflammation around the joint.
Joint instability - The joint may give way or buckle, especially the knee.