Femoroacetabular impingement syndrome (FAIS) is a motion-related clinical condition caused by a mechanical conflict in the hip between the femoral head-neck (cam) and the acetabulum (pincer). The clinical signs are mainly pain and reduced hip range of motion (ROM). To establish the diagnosis of FAIS, a triad of symptoms, clinical signs, and radiographic findings are obligatory. Both supine and lateral decubitus positions for the arthroscopic technique are commonly used, depending on surgeon preference. Longitudinal traction is applied under fluoroscopic visualization to gain access to the hip joint. Several portals are used in hip arthroscopy. Among these the anterolateral, mid-anterior, posterolateral, and anterior portals are commonly used. For access, a capsulotomy is performed. A diagnostic arthroscopy is always performed first to visualize the labrum, articular cartilage, fovea, ligamentum teres, and capsule. Osteochondroplasty is performed using an arthroscopic burr under fluoroscopic guidance to assess the contour of the femoral head-neck junction. For pincer, resection can be made with the labrum left in-situ, using an arthroscopic burr. Labral injury can be treated with labral sutures to preserve the labrum and maintain the suction seal. Several prospective studies have shown improved outcomes after hip arthroscopy for FAIS with decreased pain, improved hip function, and better range of motion.