Extra-articular:
Snapping hip, internal (Psoas) or external (Iliotibial tract).
Lesion of Gluteus Medius and/or hamstring syndrome.
Deep gluteal syndrome or piriformis syndrome.
Subspine impingement.
Ischiofemoral impingement.
Intra-articular:
Loose bodies.
Instability.
Condral traumatic lesion.
Femoroacetabular impingement: Cam and Pincer.
Labral tears.
Ligamentum teres tears.