Femoroacetabular impingement (FAI) is a hip-related injury, which occurs commonly in young, active adults. The terminology of the FAI was first introduced by Myers et al. in 1999. The impingement proceeds due to a pathological interconnection between the femur and the acetabulum, and it can be classified into three different types of morphologies: the cam, pincer, and mixed morphology. Epidemiologically, the cam morphology occurs earlier in life and more often in males, as the pincer morphology is more common in females and appears later in life. The cam morphology is further distinguished into a primary and secondary type. In cam morphology, the pathology represents an irregular contour of the femoral head-neck junction, most often in the anterior/superior region. On the other hand, an over-coverage of the acetabulum is pathognomonic for the pincer-type. In the mixed type, both the cam morphology and the pincer morphology occur within the affected coxa. Assessment of FAI involves a thorough history taking, physical examination, and diagnostic imaging. Incorporated in the physical examination are the FADIR and FABER tests. For analysis of radiological images, it is useful to determine the alpha angle and the Gosvig’s index to evaluate cam morphology, or the LCEA, which is used for pincer morphology. Besides x-ray, CT scans or MRI arthrography can be performed to clarify the disease. A known complication of the FAI is the development of osteoarthritis, which occurs due to misalignment of the femur or the acetabulum. Therapeutic options for the impingement are a conservative approach; including physical therapy, oral anti-inflammatory drugs, and intra-articular injections; or a surgical technique with an arthroscopic or open procedure.