Snapping Hip Syndrome (SHS), also known as coxa saltans, is a condition that causes a snapping or clicking sensation in the hip during movement. This occurs when tendons or muscles move over bony structures around the hip joint, creating an audible or palpable snap. While often painless initially, the condition can progress to cause discomfort and limit hip mobility. The condition most commonly develops in teenagers and young adults, though it can occur at any age.
External snapping hip is the most common type. It occurs when the iliotibial band (IT band) or the gluteus maximus tendon slides over the greater trochanter (the bony prominence on the side of the hip). The snapping sensation is usually felt and sometimes heard on the outside of the hip, particularly during activities such as walking, running, or climbing stairs.