I'm only 35-years old and I've been told I have osteoarthritis of both my hip and knee on the right side. How common is this?

Studies show knee osteoarthritis (OA) occurs in six percent of adults 30 years of age and older. That figure goes up to 11 percent for adults over age 65. As we age, more and more adults are affected by OA.

In fact, together knee and hip osteoarthritis account for more disability than any other condition for older adults. Women are affected by knee OA more often than men, too.