Osteoarthritis

Unlike rheumatoid arthritis, osteoarthritis affects larger joints of the body, like the back, hip or knee. The disease is essentially one acquired from daily wear and tear of the joint. Osteoarthritis begins in the cartilage and eventually leads to the two opposing bones eroding into each other. Initially, the condition starts with minor pain while walking but soon the pain can be continuous and even occur at night. The pain can be debilitating and prevent one from doing any type of activity. Osteoarthritis typically affects the weight bearing joints like the back, spine and pelvis. Unlike rheumatoid arthritis, osteoarthritis is a disease of the elderly. More than 30 percent of females have some degree of osteoarthritis by age 65.

Risk factors for osteoarthritis:
    * Prior joint trauma
    * Obesity
    * Repetitive joint use
    * Sedentary lifestyle

Osteoarthritis, like rheumatoid arthritis, cannot be cured but one can prevent the condition from worsening. Weight loss is the key to improving symptoms and preventing progression. Physical therapy to strengthen muscles and joints is very helpful. Pain medications are widely required by individuals with osteoarthritis. When the disease is far advanced the pain the continuous, surgery may be an option. Unlike rheumatoid arthritis, joint replacement does help many individuals with osteoarthritis.

Source: http://en.wikipedia.org/wiki/Arthritis