I would say the biggest clue is if you have had multiple stiff joints and limited movement since birth or very early childhood, not something that just suddenly started later in life. Signs can include joints that do not fully bend or straighten, arms or legs held in unusual positions, clubfoot, hip problems, weak muscles, and trouble with things like walking, reaching, gripping, dressing, or other everyday movements. If that sounds familiar, the next step is to see a family doctor or pediatrician first, and then usually an orthopedic specialist. A geneticist, neurologist, or rehab doctor may also be involved to figure out the exact cause and what kind of support or treatment would help most.