But sometimes a kid might feel pain in just one leg, then have pain in the other leg the next time. Usually, the pains are in the front of the thighs (the upper part of your legs), in the calves (the ...

For each side, the patients reported the most distal extension of their pain (back, buttock, upper thigh, lower thigh, upper leg, lower leg or foot) and where their worst pain was currently located ...