Feeling hip pain after training, walking more than usual or spending hours sitting is common, and is often associated with simple overload. Even so, when the discomfort is repeated, “tucked” into the groin or appears with certain movements, the key question arises: When can hip pain indicate femoroacetabular impingement and not a simple overload? Differentiating it matters, because overload usually improves with rest and basic adjustments, while femoroacetabular impingement (femoroacetabular impingement) can advance if ignored.
Detecting signs early helps to choose the right management and reduce the risk that the problem will end up affecting the labrum or cartilage of the hip.
Fundamental Differences Between Hip Overload and Femoroacetabular Impingement
What is hip overload and how does it manifest itself?
Hip overload occurs when muscles, tendons, or ligaments around the joint work beyond their capacity. It usually involves a sudden increase in activity, changes in routine (for example, resuming exercise after weeks) or repetitive movements.
The pain is usually more diffuse and is often noticeable on the side of the hip or in the buttock area.
It tends to worsen with exertion and calm down with rest.
There may be tenderness when touching the muscle, and sometimes mild swelling.
With a well-managed conservative plan, it usually improves in one to three weeks.
Femoroacetabular Impingement: Anatomy of the Joint Problem
Femoroacetabular impingement occurs when the head of the femur and acetabulum do not “fit” ideally during movement, and abnormal contact occurs within the joint. It can be:
- Cam: Changes in the shape of the femoral head.
- Pincer: overcoverage or prominent acetabular border.
- Mixed: combination of both.
Here the origin is not only muscular: it is an intra-articular mechanical conflict. Over time, it can be associated with hip labral injury and cartilage wear. Research published in the American Journal of Sports Medicine describes how this condition alters the biomechanics of the hip https://pubmed.ncbi.nlm.nih.gov/21737838.
Symptoms of hip impingement that should be taken seriously
Groin pain when flexing the hip: main warning sign
Groin pain when flexing the hip is one of the most guiding signs. It usually appears when:
- Bring your knee toward your chest.
- Climbing stairs.
- Getting in or out of the car.
- Sitting down and getting up from low chairs.
It is described as a deep pain, in the anterior part of the hip, with possible irradiation to the groin area. In muscle overload, the pain usually feels more superficial and to the side; In pinching, the focus is perceived “inside”.
Hip snap with groin pain during movements
Clicking hips with groin pain during specific movements may accompany impingement. Not all clicks are worrying, but when the sound repeats and hurts, it is worth considering.
This painful clicking sound can be related to irritation or damage to the labrum, especially if it occurs when you turn, flex, or change direction.
Limitation in rotating the hip inward and joint stiffness
The limitation to rotate the hip inwards (internal rotation) is very typical when there is femoroacetabular impingement. It is most noticeable when flexing the hip to 90 degrees and trying to turn the leg inwards.
Progressive stiffness may also occur.
In a simple overload, hip mobility is usually better preserved, even if it hurts due to muscle load or tension.
Typical location of pain: groin, lateral hip and buttock
Hip pain when sitting for a long time
Hip pain from prolonged sitting is common in impingement, because the hip remains in flexion and internal contact increases. Many people describe the so-called “C sign”: they wrap their hands around the hip in a C-shape, from the groin to the side.
In overload, sitting doesn’t always get that worse; It usually hurts more with direct exertion or when touching the loaded muscle area.
Hip pain when running and lifting the knee
Hip pain when running and lifting the knee usually appears in the phase where the thigh is raised or when changes in pace are accelerated. In impingement, the discomfort can “flare up” from a certain flexion range and recur constantly.
In overload, the pain may occur, but it often allows it to continue with less intensity and subsides if the load is lowered for a few days.
Risk factors in athletes and active people
Symptoms are more likely when playing sports with repeated hip flexion, twisting, and changes of direction (soccer, hockey, ballet, martial arts). In general, it is frequently seen in active people between 20 and 40 years of age, especially if there is a predisposing bone morphology from early stages of development.
Differential diagnosis: examination and clinical tests
Positive FADIR test: what it means in diagnosis
When we talk about a positive FADIR test, what it means, we are referring to a maneuver where the hip is placed in flexion, adduction and internal rotation. If it reproduces the typical pain (especially in the groin), it suggests mechanical conflict within the joint.
It is not a “sentence” on its own, but it provides a lot of guidance and helps to distinguish femoroacetabular impingement from other causes of hip pain.
When to do an MRI or X-ray for hip pain
The doubt about when to do an MRI or X-ray for hip pain arises when the pain recurs or limits activity. In suspected impingement, plain radiographs show bone features such as cam or pincer.
MRI is considered if labral injury is suspected, if pain persists, or if there are failures with conservative management. The Journal of Hip Preservation Surgery describes the usefulness of MRI (including arthro-MRI in certain contexts) to evaluate associated labral lesions.
Importance of specialized medical evaluation
An experienced hip practitioner can integrate symptoms, examination, and imaging studies to rule out similar diagnoses (tendinopathies, bursitis, referred low back pain). A well-established hip impingement diagnosis sets the tone for treatment and reduces the risk of joint damage progressing uncontrollably.
Conservative treatment femoroacetabular impingement physiotherapy
Exercises and movements that often make impingement worse
In painful phases, there are movements that tend to trigger conflict:
- Deep squats.
- Wide lunges with twist.
- Yoga poses with intense flexion and internal rotation.
- Activities that combine deep bending with torsion.
It is not a matter of “prohibiting” activity forever, but of adjusting ranges and loads while recovering hip mobility without irritating the joint.
Initial measures and what to avoid at home
Within the conservative treatment approach femoroacetabular impingement physiotherapy, the following are usually considered:
- Temporary modification of activities that cause pain.
- Cold after activity when there is irritation.
- Physiotherapy-guided exercises focused on lumbopelvic control, glute strength, stability and mobility without impingement.
It is advisable to avoid prolonged absolute rest. Sustained immobility can increase stiffness and weakness, and then it takes longer to pick up the load. Clinical Orthopaedics and Related Research describes the role of structured conservative management as the first line in many cases.
When to refer to a trauma specialist
A referral is considered when:
- Pain does not improve after 6 to 8 weeks of well-conducted conservative management.
- There is a marked functional limitation (work, sport or basic activities).
- Labral injury, hip, or cartilage damage is suspected.
- There is reasonable doubt about the diagnosis of hip impingement.
Frequently Asked Questions (FAQs) on Hip Pain, Overuse, and Impingement
¿Cómo saber si es pinzamiento femoroacetabular o sobrecarga?
To know if it is femoroacetabular impingement or overload, it is advisable to look at three points: where it hurts, what movements cause it and how it responds to rest. Impingement usually causes deep groin pain, is activated by flexion (knee to chest) and twists, and does not always go away even if you rest for a few days. Overload feels more muscular, lateral, or gluteal, and improves with rest and load adjustment.
¿Cuánto dura una sobrecarga de cadera comparado con pinzamiento?
If the question is how long a hip overload lasts, it typically improves in 2 to 4 weeks with conservative measures. Femoroacetabular impingement behaves more like a chronic problem: it can come and go, but it tends to persist if loads, ranges, and mechanical factors are not corrected. Arthroscopy discusses the progressive nature when it is not treated properly.
¿El chasquido en la cadera siempre significa lesión?
Not necessarily. There are benign clicks that appear painlessly and without limitation. What is of concern is the snapping in the hip with groin pain or the clicking that becomes frequent and coincides with loss of hip mobility or pain when running and lifting the knee. In these cases, a clinical assessment is appropriate.
¿Qué actividades diarias suelen empeorar el dolor cuando hay pinzamiento?
Tasks that place the hip in sustained or repeated flexion tend to be annoying: sitting for a long time, climbing on low carts, bending down with knees to the chest or carrying objects from the floor with the hip very flexed. Adjusting chair height, active breaks, and lifting technique can reduce symptoms while the problem is being evaluated.
¿La prueba FADIR positiva confirma el diagnóstico?
The positive FADIR test means that the maneuver reproduces the typical pain and leads to femoroacetabular impingement, but it does not confirm alone. It is interpreted together with medical history, physical examination and, if necessary, images (X-ray and, in certain cases, MRI). The whole is what defines the diagnosis of hip impingement.
¿Cuándo conviene pedir imágenes si el dolor aparece al sentarse y al correr?
If hip pain from prolonged sitting recurs and adds to hip pain when running and lifting the knee, or if there is limitation in rotating the hip inward, it usually makes sense to consider when to do an MRI or X-ray for hip pain. An X-ray may be the first step if impingement is suspected; MRI is considered if hip labral injury is sought or if there is no improvement with conservative treatment.
Distinguishing a hip overload from a femoroacetabular impingement avoids months of discomfort and reduces the risk of the joint becoming increasingly irritated. When pain settles in the groin, appears with flexion or is accompanied by stiffness, it is worth seeking a professional evaluation and adjusting the activity judiciously. With the right approach, many people are able to move again with more confidence and less pain. The key is to recognize when hip pain may indicate femoroacetabular impingement and not a simple overload.
