That pinching feeling deep in your hip when you squat, sit, or run? It has a name, and it’s not just “tightness.”
Hip impingement, also called femoroacetabular impingement (FAI), is one of the most common and misunderstood sources of hip pain we see in athletes and active adults across Charlotte. Unlike a muscle strain or acute injury, it often develops gradually and gets blamed on hip flexor tightness, overtraining, or simply getting older.
If you’ve been dealing with a pinching, grabbing, or aching sensation deep in the front of your hip, especially during squats, running, prolonged sitting, or cutting and pivoting movements, FAI may be part of the problem.
The good news is that a diagnosis of hip impingement does not automatically mean surgery. While FAI is a structural and mechanical issue, many athletes find significant relief through physical therapy that improves hip mobility, movement mechanics, load distribution, and muscular support around the joint. And for those who do ultimately need surgery, the right rehabilitation before and after the procedure can have a meaningful impact on recovery and long-term outcomes.
Here’s where most explanations go wrong: they make it sound like something is broken. It isn’t. FAI describes how your hip is shaped, and that shape has likely been part of you since you were a teenager. The pain you’re feeling now isn’t your hip falling apart. It’s your hip running into its own anatomy more often than it can comfortably handle.
The hip is a ball-and-socket joint. The “ball” is the top of your femur (the femoral head), and the “socket” is part of your pelvis (the acetabulum). In a hip with FAI, the shape of one or both of these surfaces developed slightly differently than typical, so the bones contact each other earlier or more aggressively than they should during certain movements.
There are three recognized types, and most people fall into the third:
The femoral head isn’t perfectly round. An extra bump near the neck of the femur jams into the socket as the hip moves into flexion or rotation, like a key that’s slightly the wrong shape for the lock. This is the type we see most often in athletes who squat deep or move through large ranges of hip flexion.
The socket covers more of the femoral head than typical, either overall or along one edge, so the rim of the socket pinches against the femoral neck earlier in the movement than it should. Athletes with this pattern often feel pinching sooner in a range of motion, even before reaching what feels like end range.
A combination of both Cam and Pincer changes. This is the most common presentation, and what we see most often in athletes. In practice, it usually means both the timing and the location of the pinch are affected, which is exactly why a cookie-cutter exercise list rarely solves it.
None of this is meant to sound alarming. Plenty of people walk around with Cam or Pincer-type bone shapes their whole lives and never develop symptoms. What determines whether someone becomes symptomatic usually comes down to how the hip is used, how much repetitive deep flexion or rotation it’s exposed to, and how well the surrounding muscles manage load through the joint. That’s exactly where physical therapy comes in.
Athletes describe FAI in a lot of different ways, but a few patterns come up constantly:
If several of these sound familiar, you’re not alone, and you’re not imagining it. These symptoms are real, common, and treatable.
The underlying bone shape that creates Cam or Pincer impingement often develops during adolescence, particularly in athletes who were highly active during their growth years. This isn’t anyone’s fault, and it isn’t something better stretching or technique could have prevented. It’s simply how the bone developed during a key growth window.
What turns that bone shape into a symptomatic problem is usually repetitive loading in positions that bring the hip into deep flexion, rotation, or both. Certain sports place athletes in these positions constantly:
HockeyThe skating stride locks the hip into deep flexion and internal rotation thousands of times a game. That's a lot of reps in the exact position where impingement happens. |
SoccerKicking, cutting, and pivoting all drive the hip through end-range flexion and rotation, often at speed and under contact. |
RunningHigher mileage or mechanics with excessive hip flexion at the drive phase can turn a quiet bone shape into a loud one over time. |
CrossFitSquatting below parallel under fatigue repeatedly loads the hip into its most impinged position, right when control is hardest to maintain. |
WeightliftingDeep squats, cleans, and snatches demand significant hip flexion range under heavy load, often at the exact moment the joint is most compressed. |
None of this means these sports are bad for you or that you need to give them up. It means athletes in these sports are more likely to develop symptoms from an underlying hip shape that was always there. The goal of physical therapy isn’t to eliminate these movements from your life. It’s to help your hip tolerate them better.
These two conditions are closely related, frequently occur together, and are often confused for one another. Here’s how they compare side by side:
| Hip Impingement (FAI) | Labral Tear |
|---|---|
| A bone shape issue: extra growth on the femoral head, the socket, or both, causing early or excessive contact between the joint surfaces. | A soft tissue issue: damage or wear to the cartilage rim (labrum) that lines and stabilizes the hip socket. |
| Often develops during adolescence based on how the bone formed during growth. | Often develops over time from repetitive pinching caused by an underlying FAI. |
| Frequently exists without ever causing symptoms. | Can also exist without symptoms, even on imaging that looks significant. |
| Shares nearly identical symptoms with labral tears: pinching, groin pain, clicking, and pain with deep hip flexion. | Very commonly occurs alongside FAI, since the two conditions often drive each other. |
The bottom line: two athletes can have nearly identical MRI findings and have completely different experiences, depending on how their hip moves and how their body manages load. If you’ve been told you have a labral tear, FAI, or both, the most useful next step isn’t necessarily more imaging. It’s understanding how your hip behaves during the movements that matter to you.
For most athletes, yes. This is one of the most common questions we get, and it deserves a balanced, honest answer.
The bone shape that creates FAI doesn’t change with physical therapy. We’re not going to reshape your femur or your socket through exercise. What does change, and what often makes the biggest difference, is how your hip moves into and out of positions that cause pinching, how well your surrounding muscles control the joint, and how much total load your hip is being asked to handle relative to its current capacity.
For many athletes, an effective non-surgical plan includes:
Root cause analysis to identify strategies needed for long term success.
Activity modification in the short term, not avoidance forever. Smart adjustments to volume, depth, or frequency while symptoms calm down.
Mobility restoration in surrounding joints like the thoracic spine and ankles, so the hip doesn’t compensate form stiffness elsewhere.
Strength development around the hip and pelvis, particularly in positions and ranges the joint already tolerates well.
Load management across the full training week. Hip pain rarely comes from one session. It comes from accumulated stress without enough recovery.
Surgery has a role for some athletes, but for a large percentage of people with FAI, a well-built physical therapy program is the first, and often the only, intervention needed.
When you come in for an evaluation, we’re not just looking at your hip in isolation. We’re looking at how your entire body moves, because the hip doesn’t operate independently from the rest of the kinetic chain.
This is the same individualized, root-cause approach we bring to every condition we treat, built around your sport, your goals, and how your body actually moves.
The Charlotte Athlete was the answer to my prayers. I had been struggling with hip pain, which they later confirmed was a hip impingement, that made squats and lunges difficult. They quickly diagnosed the issue, and their correctional exercises and stretches made a difference until eventually there was no pain ever.
I highly recommend The Charlotte Athlete for all your prehab and rehab needs. They’re personable, knowledgeable, and have great hours!
— Erin Derrick, Google Review
FAI doesn’t care what sport you play, but how it shows up, and what fixing it looks like, depends a lot on what you’re asking your hip to do.
RunnersIf your hip pain shows up during the drive phase or creeps in as mileage builds, the fix usually isn't "run less." It's restoring hip extension and pelvic control so your stride stops asking the joint for range it doesn't have. |
LiftersPinching at the bottom of a squat doesn't always mean stop squatting. Often it means your depth, bar position, or hip mobility need to be matched to each other, not forced. |
GolfersLead hip pain on the backswing or follow-through is almost always a rotation problem hiding in plain sight. Fix how rotation is shared through the body, and the hip stops absorbing all of it. |
Rotational AthletesField sports, tennis, and combat sports demand huge rotational ranges under speed. Mobility alone won't hold up. You need stability through that range too, or the hip keeps paying for it. |
Active AdultsPain getting in and out of the car or sitting through a long meeting isn't "just aging." It's the same mechanical story as an athlete's, just at a slower pace. The fix is the same too. |
Youth AthletesCatching this early during high-volume training years matters. The bone shape won't change, but how it's loaded for the next decade absolutely can. |
None of this means these sports are bad for you or that you need to give them up. It means athletes in these sports are more likely to develop symptoms from an underlying hip shape that was always there. The goal of treatment isn’t to eliminate these movements from your life. It’s to help your hip tolerate them better.
For most people with FAI, surgery is not the first step, and it’s often not needed at all. However, surgical intervention, typically a hip arthroscopy to reshape the bone and address any labral damage, becomes the right path when:
If surgery does become part of your path, physical therapy remains essential, both before surgery to optimize strength and mobility going in, and after surgery to guide a safe, progressive return to the activities you care about. We work with athletes at every stage of this process, whether you’re trying to avoid surgery, preparing for it, or recovering from it.
If hip pain has been getting in the way and you’re ready for a real answer instead of more guessing, here’s where to start.
Ready to Get Real Answers About Your Hip?
Our approach is rooted in sports medicine and performance. The goal isn’t just to get you out of pain. It’s to get you back to training, competing, and moving the way you want to move.
Hip impingement, or femoroacetabular impingement (FAI), happens when the ball and socket of the hip joint make contact too early or too often during movement because of how the bones are shaped. This causes pinching, restricted motion, and pain, particularly with squatting, running, or sitting in deep hip flexion.
Physical therapy can’t change the underlying bone shape, but it can significantly reduce or resolve symptoms for most people by improving how the hip moves, strengthening the muscles that support the joint, and managing how much load it’s exposed to. Many athletes return to full training and competition through physical therapy alone.
No, but they’re closely related. FAI is a bone shape issue, while a labral tear is damage to the cartilage rim of the hip socket. The repetitive pinching caused by FAI can lead to labral wear over time, so the two conditions frequently occur together and can produce very similar symptoms.
No. Tendinitis or tendinopathy involves irritation or degeneration of the tendon without structural disruption. A tear involves actual damage to the tendon fibers. The symptoms can be similar, which is why a thorough clinical evaluation matters more than assuming based on imaging alone.
In many cases, yes. Whether running is appropriate depends on your current symptoms, how your hip is moving during gait, and your overall training load. A thorough evaluation can determine whether running needs to be temporarily modified or whether it can continue alongside a treatment plan.
No. Most people with FAI improve significantly with physical therapy and never need surgery. Surgery becomes a consideration when symptoms persist despite a genuine course of conservative treatment, or when imaging findings are significant and clearly correlate with symptoms.
FAI itself comes from bone shape, not sport. But sports requiring repetitive deep hip flexion or rotation, like hockey, soccer, CrossFit, weightlifting, and high-volume running, are more likely to turn an underlying bone shape into a symptomatic problem.
Effective exercises depend on your specific presentation, but generally focus on building strength and control around the hip and pelvis in tolerable ranges, improving mobility in the hip and surrounding joints, and gradually building tolerance to the positions that currently provoke symptoms. A generic exercise list isn’t as effective as a plan built around how your hip specifically moves.
This varies based on symptom severity, how long you’ve been dealing with the issue, and your activity demands, but many athletes see meaningful improvement within 6 to 12 weeks of consistent, well-targeted physical therapy. Athletes returning to high-demand sports or those with more significant structural findings may need a longer timeline.