Osteoarthritis is caused by the joints degenerating. It’s more common as we get older when the joints have spent a lifetime supporting the weight of the body and allowing us to move.
In osteoarthritis, there is progressive damage to the tissue that cushions the ends of the bones.
Over time, this cartilage becomes ragged and uneven, the space between the bones narrows, and bone can rub against bone.
Movement becomes painful, and lumps can develop on the surface of the bones.
Osteoarthritis causes joint pain and stiffness, and although any joint can be affected, the knees, hips, and hands are more at risk.
There may be joint swelling and soreness. However, the joints shouldn’t appear red or feel hot.