Femoroacetabular Impingement & Hip Labral Tear
Femoroacetabular impingement, usually shortened to FAI, describes a hip where the ball and socket make contact earlier and harder than they should at the ends of movement, typically because of extra bone on the femoral neck, a deeper or over-covering socket rim, or both. At Modern Physio we focus on understanding the root-cause of your problem & personalizing your treatment for lasting results.
Understanding Femoroacetabular Impingement & Hip Labral Tear
Femoroacetabular impingement, usually shortened to FAI, describes a hip where the ball and socket make contact earlier and harder than they should at the ends of movement, typically because of extra bone on the femoral neck, a deeper or over-covering socket rim, or both. That repeated contact can irritate and tear the labrum, the rubbery rim of cartilage that seals the socket. It is a condition of young, active adults, and in a city where gym training, running, badminton, cricket, dance and long hours of floor sitting all sit alongside each other, it is almost certainly more common in Jaipur than the number of diagnoses would suggest. The typical picture is groin pain that builds with deep flexion, prolonged sitting, driving, squatting and pivoting sports, often described by cupping the hand around the front and side of the hip. It is also frequently mislabelled for years as a groin strain that never quite resolves. Importantly, hip impingement is a clinical diagnosis and not just a scan finding: cam-shaped bone is common in people who have no symptoms at all, so an incidental X-ray finding does not by itself mean you have this condition. Physiotherapy here has unusually good evidence by musculoskeletal standards, including a large UK randomised trial comparing hip arthroscopy with a structured physiotherapy programme. That trial found both improved hip-related quality of life, with surgery producing greater improvement while costing considerably more, and a separate trial in a military population found no difference between the two at two years. Our honest reading of that evidence is that a properly structured physiotherapy programme deserves a genuine trial first for most people, and that surgery is a reasonable conversation if it does not deliver.
Common Symptoms
- Groin pain that builds with deep hip bending, squatting, or prolonged sitting
- The characteristic C sign, where you cup your hand around the front and side of the hip to show where it hurts
- Pain after long periods driving or sitting at a desk, which eases after standing and moving
- Discomfort or pinching when pulling the knee towards the chest or turning the thigh inwards
- Pain with pivoting, twisting and change of direction in sport
- Clicking, catching or a sense of the hip locking momentarily, which is more suggestive of a labral tear
- Stiffness in the hip, particularly noticed when trying to sit cross-legged or squat deeply
- Aching in the buttock or the outside of the hip alongside the groin pain
- Difficulty putting on socks and shoes on the affected side
- A groin strain that has been treated repeatedly for months without ever properly settling
How Common Is It?
Femoroacetabular impingement typically affects young and middle-aged active adults, most often between the twenties and forties. Cam-shaped bone morphology is common in the general population, particularly in men and in those who played impact or pivoting sport through adolescence, but the majority of people with that bone shape never develop symptoms, which is why the diagnosis requires symptoms, clinical signs and imaging together rather than imaging alone. There is no reliable India-specific prevalence data for this condition, and it is likely to be underdiagnosed here given limited routine access to hip MRI and hip arthroscopy outside major centres. What we see clinically is that it is frequently mistaken for a persistent groin strain, so people arrive having had months of treatment aimed at the wrong structure.
Causes & Risk Factors
- Cam morphology, where extra bone at the junction of the femoral head and neck reduces clearance during hip flexion and rotation
- Pincer morphology, where the socket covers the femoral head more than usual and the rim makes early contact
- A combination of both cam and pincer shapes, which is common
- Bone shape that develops during adolescence, particularly in those doing high volumes of pivoting or impact sport during growth
- Sports involving repeated deep flexion and rotation, including football, martial arts, dance, badminton and squatting-based gym work
- Occupations and habits involving prolonged deep hip flexion, including long hours of floor sitting or squatting
- Weakness or poor control of the deep hip rotators and gluteal muscles, which allows the joint to move less precisely under load
- Reduced spinal and pelvic mobility, which pushes more movement demand into the hip joint itself
Our Diagnosis Process
- A detailed history of the pain, particularly its relationship to sitting, squatting, driving and sport, since the pattern is often more informative than any single test
- Clinical impingement testing, including flexion with adduction and internal rotation, alongside the range of hip movement in all directions
- Assessment of hip and pelvic muscle strength, especially the abductors, deep rotators and adductors
- Screening of the lumbar spine, sacroiliac joint and groin structures, since these commonly refer pain to the same area and often coexist
- Movement analysis of squatting, single-leg control and, where relevant, sport-specific movements
- Referral for imaging where appropriate, understanding that X-ray and MRI describe bone shape and labral status but do not by themselves make the diagnosis
- Explicit consideration of other causes of hip pain in a young adult, including avascular necrosis, stress fracture and inflammatory arthritis, with medical referral where suspected
Our Treatment Approach
- Education about which positions load the hip into impingement, which is often the single change that settles symptoms fastest
- Activity and load modification, including seat height, driving position, squat depth and training volume, rather than stopping activity altogether
- Progressive strengthening of the gluteal muscles, deep hip rotators and adductors, which is the core of the evidence-based programme
- Trunk and pelvic control work so the hip is not compensating for an unstable base
- Movement retraining to reduce repeated end-range loading during squatting, lunging and sport
- Restoring hip range where it is genuinely restricted, without forcing movement into painful impingement positions
- Manual therapy for the surrounding musculature as an adjunct for comfort, alongside rather than instead of the strengthening programme
- A graded return to running, gym training or sport based on strength and control milestones rather than time alone
- An honest review point after a properly delivered programme, with onward orthopaedic referral if symptoms have not improved
- Rehabilitation after hip arthroscopy for those who go on to surgery, following the operating surgeon's protocol
Key Highlights
Evidence-based hip strengthening drawn from trial-tested programmes for this condition
Clear distinction between bone shape seen on a scan and a condition that needs treating
A defined review point, with honest onward referral if physiotherapy has not worked
Post-arthroscopy rehabilitation for those who proceed to surgery
Recovery & Prevention Tips
- Change how you sit before you change anything else: low, deep seats and long unbroken sitting are among the most common daily aggravators
- Adjust squat depth rather than abandoning squats, since strength work matters and it is the end range that provokes the joint
- Give the programme a fair trial of around three months before drawing conclusions, because strengthening changes take that long to show
- Do not stretch aggressively into the painful pinching position in the belief you are loosening the joint, as that is the position causing the irritation
- Break up long drives and desk sessions with standing and walking
- Build hip and gluteal strength consistently rather than in bursts, as this is what allows the joint to tolerate load
- Return to pivoting sport gradually and by milestones, not by the calendar or by how motivated you feel on a given day
- Take clicking without pain far less seriously than pain itself, since noise alone is rarely the problem
- Raise avascular necrosis with your doctor if you have had significant steroid treatment, as it can present with similar groin pain in the same age group
- Keep up a maintenance level of hip strengthening after recovery, because the bone shape does not change and the muscles are what protect the joint
Products That Can Help
Supports and equipment we fit at the clinic that patients with this condition commonly use alongside treatment, never instead of it.
Related conditions
People reading this page often want one of these next. Each has its own guide to symptoms, causes and what physiotherapy can and cannot do.
Evidence & Sources
The UK FASHIoN randomised controlled trial compared hip arthroscopy with a structured physiotherapy programme called Personalised Hip Therapy in people with femoroacetabular impingement syndrome, and found that both groups improved hip-related quality of life at twelve months, with arthroscopy producing greater improvement at substantially higher cost.
Griffin et al. - Hip arthroscopy versus best conservative care for femoroacetabular impingement syndrome (The Lancet, 2018)The Warwick Agreement on femoroacetabular impingement syndrome sets out that diagnosis requires a combination of symptoms, clinical signs and imaging findings, rather than imaging appearance alone.
Griffin et al. - The Warwick Agreement on femoroacetabular impingement syndromeA pilot randomised controlled trial of a condition-specific physiotherapy programme for femoroacetabular impingement syndrome reported the potential for a moderate to large positive effect on hip pain, function and hip adductor strength.
physioFIRST pilot randomised controlled trialFrequently Asked Questions
Do I need surgery for hip impingement?
Often not as a first step, and the evidence supports trying a proper physiotherapy programme first. The largest trial in this area compared hip arthroscopy with a structured physiotherapy programme and found that both improved hip-related quality of life at twelve months, with surgery producing a greater improvement at considerably higher cost, while a separate trial in a military population found no difference between the two at two years. Our reading is that a well-delivered strengthening and movement programme deserves a genuine trial of around three months, and that surgery becomes a reasonable conversation with an orthopaedic surgeon if that has not delivered. We would rather set a clear review point than leave you doing exercises indefinitely.
My scan shows cam morphology. Does that mean I have FAI?
Not on its own, and this is one of the most useful things to understand about this condition. Cam-shaped bone at the head and neck junction is common in the general population, especially in men and in people who played impact or pivoting sport as teenagers, and the majority of those people never develop symptoms. The formal consensus position is that diagnosing femoroacetabular impingement syndrome requires symptoms, clinical signs and imaging findings together. A scan finding without matching symptoms is a description of your anatomy, not a diagnosis, and treating it as one leads to unnecessary worry and sometimes unnecessary surgery.
Can physiotherapy change the bone shape causing the impingement?
No, and we will not pretend otherwise. The bone shape is what it is, and only surgery reshapes it. What physiotherapy changes is everything around the bone: how strong the gluteal muscles and deep rotators are, how well the pelvis and trunk control the hip under load, how much end-range loading your daily activities and training impose, and how the joint is positioned during squatting, sitting and sport. In practice that is often enough for symptoms to settle substantially, which is why the trial evidence shows meaningful improvement from physiotherapy despite the anatomy being unchanged.
I have been treated for a groin strain for months with no improvement. Could this be it?
It is a very common story with this condition and worth raising with your clinician. A groin strain is a muscle injury and should respond to progressive loading over weeks, so a groin problem that persists for months in a young active adult, particularly one that is worse with deep squatting, prolonged sitting and pivoting rather than with sprinting, should prompt a look at the joint rather than just the muscle. The two can coexist, which adds to the confusion. Assessment for hip impingement is straightforward and does not require a scan to begin with.
Should I stop squatting and going to the gym?
Usually no, and stopping entirely is often counterproductive because strength is a large part of the treatment. What generally needs to change is depth and volume rather than the activity itself. Squatting to a depth that stays clear of the pinching position, adjusting stance, moderating training frequency and progressing load gradually usually allows you to keep training while the hip settles. Deep loaded flexion, deep leg press and heavy end-range work are the usual culprits. We would far rather modify your programme than remove it, since gym training is doing much of the work that helps this condition.
Is clicking in my hip a sign of a labral tear?
Not necessarily. Hips make noise for many harmless reasons, including tendons moving over bony prominences, and painless clicking on its own is rarely a cause for concern. What raises more suspicion of a labral tear is clicking or catching accompanied by pain, a sense of the joint locking momentarily, or a feeling of giving way. Even then, labral tears are common in people without symptoms, so the finding is interpreted alongside the clinical picture rather than in isolation. If your hip clicks but does not hurt, that is generally reassuring rather than alarming.
How long does physiotherapy take to work for FAI?
Expect to judge it over about three months rather than a few weeks. The mechanism of improvement is largely strength and motor control, and those adapt on a timescale of weeks to months, not days. Many people notice symptom changes earlier than that from the load and position modifications alone, because removing the repeated end-range irritation often settles things reasonably quickly. But the durable improvement, the part that lets you return to sport, comes from the strengthening, and that needs consistent work over a proper period. If there has been no meaningful change after a properly delivered programme, that is useful information rather than failure, and it is the point to discuss surgical options.
Could my groin pain be something more serious than impingement?
It can be, which is why assessment matters rather than self-diagnosis. In a young adult, groin pain can also come from avascular necrosis of the femoral head, which is notably common in India and important to catch early, from a stress fracture of the femoral neck in runners and athletes, from inflammatory joint disease, and occasionally from hernias or referred pain from the spine. Features that would make us refer for medical assessment include significant steroid or alcohol history, night pain, rapidly worsening symptoms, systemic symptoms such as fever or weight loss, or pain that does not fit the mechanical pattern of impingement.
Medically Reviewed
This content was reviewed for medical accuracy by Dr. Surabhi Bansal, BPT, MPT (Ortho) with 14+ years of clinical experience.
At Modern Physio, all medical content undergoes a thorough review process to ensure accuracy and alignment with current physiotherapy standards. Our content is created to educate and should not replace professional medical advice. Learn more about our review process.
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Progressive hip, gluteal and trunk strengthening based on the programmes tested in trials for this condition.
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Hands-on work for the surrounding muscles to ease symptoms alongside the strengthening programme.
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