Pain is one of the most common presenting complaints in early Legg-Calve-Perthes disease (along with limp). Pain typically is felt in the groin, side of the hip area, thigh, or even the knee. In the early stages of LCPD pain is typically caused by synovitis (inflammation of the joint lining), extra fluid in the joint,

What causes Perthes disease? The cause is unknown and the disease is not inherited in most patients. A very small number of patients have another family member with Perthes. Should I expect a lot of complaints of pain? Pain generally suggests that there is hip joint inflammation, which can be caused by too much activity.