The hip joint contains several structures that can tear: the labrum (a ring of cartilage lining the socket), tendons that attach muscles to bone, ligaments that stabilize the joint, and muscles themselves. Some of these injuries happen suddenly from a fall or collision, while others develop gradually from repetitive motion or age-related wear. Where you feel pain, how it started, and what movements make it worse all point toward which structure is damaged.
The Labrum
The labrum is a ring of tough cartilage that lines the rim of your hip socket, creating a seal that helps hold the ball of the thigh bone in place. Labral tears are one of the most common hip injuries, and they produce a distinctive set of symptoms: a clicking, catching, or locking sensation in the joint, along with pain in the groin or front of the hip. The pain often worsens with prolonged sitting, deep squatting, or twisting movements.
Three main forces cause labral tears. A sudden impact, like a car accident or a tackle in football, can tear the labrum in one event. Repetitive motions, particularly the twisting and pivoting common in golf, softball, and long-distance running, wear the labrum down over time. And some people are born with structural differences in the hip that accelerate that wear. A shallow hip socket (dysplasia) puts extra stress on the labrum, and extra bone growth around the joint, known as femoroacetabular impingement or FAI, can pinch and gradually shred it.
Diagnosing a labral tear often requires a specific type of imaging. A standard MRI catches only about 8 to 25% of labral tears. An MR arthrogram, where contrast dye is injected into the joint before the scan, bumps that detection rate to 92% with no false positives. If your doctor suspects a labral tear, the arthrogram version is far more reliable.
Gluteal Tendons
The gluteus medius and gluteus minimus tendons attach your outer hip muscles to the bony bump on the side of your thigh bone (the greater trochanter). These tendons are sometimes called the “rotator cuff of the hip” because they stabilize the joint in much the same way the rotator cuff stabilizes the shoulder, and they tear in similar fashion. Up to 25% of late-middle-aged women and 10% of middle-aged men develop gluteal tendon tears.
Unlike labral tears, which cause groin or front-of-hip pain, gluteal tendon tears produce a dull ache on the outer side of the hip. The pain is typically worse when lying on the affected side and when climbing stairs. If the tear is significant, you may notice a limp: weakness in the torn tendon causes the pelvis to drop on the opposite side with each step, a pattern called Trendelenburg gait. Your doctor can often detect this during a physical exam, and it’s the most reliable bedside test for gluteal tendon damage. X-rays may show changes around the greater trochanter, but an MRI is usually needed to confirm whether the tendon is partially or completely torn.
The Ligamentum Teres
Deep inside the hip socket, a small ligament called the ligamentum teres connects the ball of the thigh bone directly to the floor of the socket. It helps stabilize the joint and carries a small blood supply to the bone. This ligament tears more often than most people realize. In patients undergoing hip arthroscopy for other reasons, roughly half have some degree of ligamentum teres damage: about 22% have tears involving less than half the ligament, 24% have tears greater than half, and 5% have complete ruptures.
Here’s what makes this injury tricky: ligamentum teres tears don’t consistently cause pain on their own. They do correlate with older age, reduced hip function, more labral damage, and greater overall joint laxity. So a torn ligamentum teres often shows up alongside other hip problems rather than as an isolated injury, and it can contribute to a vague sense of instability or deep hip discomfort that’s hard to pinpoint.
The Hip Capsule and Stabilizing Ligaments
The hip joint is wrapped in a thick fibrous capsule reinforced by several strong ligaments, the largest being the iliofemoral ligament across the front of the joint. These structures prevent the hip from dislocating during extreme movements. A direct blow to the hip or chronic overuse can partially or fully tear the iliofemoral ligament, leading to a feeling of instability, particularly when the leg is extended and rotated outward. The sensation is similar to what people describe as the hip “giving way” or feeling loose in certain positions.
Capsular and ligament injuries are less common than labral or tendon tears, but they matter because they change how stable the joint feels during everyday activities. They’re most often seen in athletes who repeatedly push the hip into extreme ranges of motion, such as dancers, gymnasts, and martial artists.
Hamstring Tendons at the Pelvis
Your three hamstring muscles attach to the ischial tuberosity, the bony point you sit on at the bottom of the pelvis. A sudden sprint, an awkward stretch, or a fall can tear these tendons right where they anchor to the bone. This injury causes sharp, sudden pain in the back of the hip and upper thigh, often accompanied by a popping or tearing sensation. Swelling and bruising develop within hours, and the bruising can spread down the back of the leg.
In a complete avulsion, the tendon rips entirely off the bone, and the hamstring muscles can’t generate normal force. You may struggle to put weight on the leg or feel significant weakness when trying to bend the knee against resistance. This injury is distinct from problems inside the hip joint itself: the pain sits lower and farther back, centered under the buttock rather than in the groin or side of the hip.
Adductor Muscles and Tendons
The adductor muscles run along the inner thigh and attach to the pubic bone near the groin. The adductor longus tendon is the most commonly torn, usually during a sudden change of direction, a kicking motion, or a split-like stretch. The pain is immediate, severe, and located right in the groin. You’ll typically feel tenderness along the inner edge of the pubic bone, and pulling the legs together against resistance will reproduce the pain or reveal noticeable weakness compared to the uninjured side.
Groin pain from an adductor tear can overlap with labral tear symptoms since both cause pain in the front of the hip. The key difference is that adductor injuries hurt most with resisted squeezing motions and produce tenderness you can press on along the inner thigh, while labral tears cause deeper joint symptoms like clicking and catching.
How These Injuries Are Treated
Treatment depends on which structure is torn and how severe the damage is. Many partial tears of tendons, muscles, and the labrum respond to rest, physical therapy, and anti-inflammatory measures. Complete tears of the gluteal tendons or hamstring avulsions from bone often need surgical repair.
For labral tears that don’t improve with conservative treatment, hip arthroscopy is the standard procedure. Recovery involves wearing a hip brace for about three weeks and using crutches for one to two weeks, with no weight on the hip for at least the first week. Physical therapy follows and can last anywhere from a few weeks to several months. Most people return to heavy exercise or sports around 12 weeks after surgery.
Gluteal tendon repairs follow a similar timeline, though the emphasis during rehab shifts to rebuilding strength in the outer hip muscles. Hamstring avulsion repairs tend to have a longer recovery because the tendon must heal securely back to bone before you can load it with sprinting or deep stretching. Adductor tears, when partial, usually heal with targeted strengthening over several weeks. Complete ruptures occasionally require surgery, but this is less common.
Getting the right diagnosis matters because these injuries can mimic each other. Pain location is the most useful clue: groin and front-of-hip pain points toward the labrum or adductors, outer hip pain suggests the gluteal tendons, and pain under the buttock implicates the hamstrings. Clicking or catching almost always involves the labrum. Your doctor will use a combination of physical exam findings and imaging to narrow it down.