Femoracetabular impingement is one of most important and preventable precursor of early hip osteoarthritis. The incidence of the disease is not clearly known in the population. We also do not know the natural history of the people who have morphological changes of acetabulofemoral impingement. The treatment indications are open for discussion due to lack of knowledge. The disease is still one of the most important reason of hip pain and treatable situation in symptomatic patients although there are to many conflicts. Further studies are necessary to evaluate natural history of the disease and effectiveness of treatment.