Most people with ankylosing spondylitis (AS) know about back pain. But other areas of your body can swell and hurt, too.
That’s what happened to 23-year-old Stefanie Gomez. When she was 15 -- before she ever had back pain -- the joints in her toe, ankle, and knee swelled up. They became red, warm, and painful.
It’s pretty common for AS to first show up in places other than your spine. That’s especially true for people who are younger than 16.
It wasn’t long before Gomez, now a social worker in...