Growing pains usually affect children under the age of 10. They tend to occur at night, with pain in the their legs, knees and hips, after the child runs and plays during the day. The next day, they get up and they run and do everything they want to do again without pain or limitations. They don't have any other associated symptoms such as fever or weakness, loss of appetite, etc. When children feel pain in one or both hips, in the groin area or even around the sides of the hips for days and it doesn't get better, they need to be evaluated