“The feet are prime real estate for arthritis,” says Doug Tumen, DPM, board-certified podiatrist, author of Ask The Foot Doctor, and a founding partner of Hudson Valley Foot Associates. Each foot has 26 bones and 33 joints — together, the feet contain more than 25 percent of the bones in your entire body. Getting arthritis in any one of those 66 joints can create massive problems in your daily life, not to mention causing long-term, permanent damage, he explains.