Background Femoroacetabular impingement (FAI) is a well-described condition that causes hip pain in young to middle age adults. Cross sectional studies have estimated that the prevalence of hip impingement ranges from 14-17% among asymptomatic young adults and nearly 95% among competitive athletes. FAI occurs as a result of a size and shape mismatch between the femoral head and the acetabulum. There are two subtypes of FAI: Cam type and Pincer type. Cam type is caused by a misshaped femoral head and pincer is caused by an over coverage of the acetabular rim. Most patients have a mixed type of Cam and pincer impingement that involves some degree of an abnormally shaped femoral neck and over coverage of the acetabulum. Arthroscopic treatment for FAI has demonstrated promising results. It has been shown to alleviate pain and improve function with good return to sport rates in young athletes with FAI.