Femoroacetabular impingement is a prearthrosic disease and its awareness has been increasing nowadays. Radiological analysis is the main diagnostic tool in the diagnosis of femoroasetabular impingement and plain radiographs are the most important radiological method in this evaluation. For a complete assessment of hip pain in adult patients; pelvis anteroposterior (AP) radiography, pelvis frog-leg radiography, cross-table lateral radiography, Dunn radiography, modified Dunn radiography and false-profile graphy should be obtained. For the accurate diagnosis of femoroacetabular impingement, these plain radiographies should be displayed in ideal standard positions and methods. Femoroasetabular impingement can be diagnosed with the help of the CE angle, Tönnis angle, alpha angle, femoral head-neck offset and femoral head-neck offset ratio measurements on these standard radiographies.