The pain that keeps you from sleeping on your side

Lying on one side and feeling intense pain on the lateral aspect of the hip that radiates to the outer thigh is an extremely prevalent complaint — especially in middle-aged women. For decades, this presentation was called trochanteric bursitis and treated with corticosteroid injections into the bursa. The problem: MRI studies showed that isolated bursitis is found in only a minority of these patients. The most frequent cause, according to current literature, is gluteal tendinopathy — alteration of the gluteus medius and gluteus minimus tendons at their insertion on the greater trochanter.

In parallel, active trigger points in the gluteus medius refer pain to the lateral hip, sacrum, and coccyx in a pattern that perfectly mimics bursitis. The distinction matters: bursitis responds to corticosteroids; gluteal tendinopathy and trigger points respond to dry needling and neuromuscular rehabilitation — and repeated corticosteroid use can paradoxically further weaken the already compromised tendon.

Prevalence and who suffers most

More common in women
40–60 YEARS
greater trochanteric pain syndrome is described as substantially more prevalent in women in this age range, with recurrent lateral hip pain
Common
IN RUNNERS
runners are an at-risk population for gluteal tendinopathy — especially with abrupt increases in training volume
Superior result
EXERCISE VS. CORTICOSTEROID
clinical trials such as LEAP (Mellor et al., BMJ 2018) showed that an education and therapeutic exercise program was superior to isolated corticosteroid injection in long-term outcomes for gluteal tendinopathy
2–5
YEARS
is the average time patients live with lateral hip pain without correct diagnosis, treating "bursitis" with corticosteroids without lasting result

Why does lying on the side hurt só much?

  1. Tendon compression at the trochanter

    In side-lying position, the weight of the upper limb compresses the gluteus medius tendon against the greater trochanter. Tendons with tendinopathy are extremely sensitive to compression — unlike healthy tendons.

  2. Gluteus medius weakness

    The gluteus medius is the main lateral hip stabilizer during gait. Its weakness increases dynamic knee valgus and overloads the tendon with each step, perpetuating tendinous degeneration.

  3. Trigger points as amplifiers

    Trigger points in the gluteus medius refer pain to the lateral hip and sacrum, adding to tendinous pain. The same patient can have tendinopathy AND active trigger points simultaneously.

  4. Positions of high compressive tension

    Crossing the legs while seated, lying on the affected side, and climbing stairs place the tendon in a position of high compression and shear — explaining why these activities are the most painful.

  5. Dry needling and rehabilitation

    Needling the gluteus medius deactivates trigger points and modulates local tendon sensitization. Supervised therapeutic exercise restores muscular strength and tendon load capacity.

Recognizing the lateral hip pain pattern

Critérios clínicos
08 itens

Gluteal tendinopathy / greater trochanteric pain syndrome — typical presentation

  1. 01

    Pain on the lateral hip when lying on the affected side — frequently waking at night

  2. 02

    Worsens when crossing the legs while seated or sitting with legs crossed

  3. 03

    Pain when climbing stairs or getting out of the car

  4. 04

    Worsens when standing for long periods

  5. 05

    Burning or stabbing sensation on the lateral thigh, radiating to the knee

  6. 06

    Pain when walking on inclined terrain (laterally loaded)

  7. 07

    Pain with direct pressure over the greater trochanter

  8. 08

    Absence of pain on passive hip rotation in supine position (difference from osteoarthritis)

Myths and facts about the lateral hip

Myth vs. Fact

MYTH

Trochanteric bursitis always needs a corticosteroid injection

FACT

Corticosteroid injection offers rapid relief, but the effect lasts only 4–8 weeks on average. Multiple injections weaken the already compromised gluteal tendon. Definitive treatment involves dry needling, therapeutic exercise, and modification of compressive activities.

MYTH

Lateral hip pain is a sign of a problem in the hip joint

FACT

The hip joint is in the groin, not on the lateral side. Lateral hip pain is rarely articular — it is tendinous (gluteus medius/minimus at the trochanter) or myofascial (trigger points in the gluteus medius). Hip osteoarthritis typically hurts in the groin and on the anterior thigh.

MYTH

Total rest is the best treatment for an inflamed tendon

FACT

Tendons need progressive loading for remodeling and recovery. Absolute rest leads to muscle atrophy and worsens long-term outcomes. The principle is "relative loading" — reducing compressive activities while maintaining low-compression activity such as flat-ground walking.

Neurofunctional treatment protocol

Diagnosis and stratification
1st visit

FABER/FADIR test to exclude osteoarthritis. Trochanter provocation test (passive adduction). Assessment of gluteus medius strength (Trendelenburg test). Palpation for trigger points. Assessment of compressive factors (habit of crossing legs, side-lying position).

Dry needling of the gluteus medius
Sessions 1–4

Precise needling of trigger points in the gluteus medius (three portions: anterior, middle, and posterior). 4 Hz electroacupuncture for neuromodulatory and local anti-inflammatory effect on the tendon.

Functional rehabilitation
Sessions 5–8

Medical prescription of isometric exercises for the gluteus medius in the initial phase (without compression of the tendon). Progression to controlled load exercises. Biweekly maintenance acupuncture.

Discharge and prevention
Sessions 9–10

Definitive guidance on positions to avoid (crossing legs, direct side-lying). Maintenance exercise program. Footwear assessment and gait analysis if a runner.

Clinical pearl: distinguishing gluteal tendinopathy from osteoarthritis

Frequently asked questions

FREQUENTLY ASKED QUESTIONS · 03

Frequently Asked Questions

Not necessarily. Running on flat ground at moderate volume is generally allowed. Avoid: hill running (especially downhill), running on laterally inclined surfaces, and abrupt increases in volume. The physician individually assesses and adjusts the training program during treatment.

Placing a pillow between the knees when sleeping on the side reduces hip adduction and tendon compression at the trochanter — significantly relieving night pain. Sleeping on the back also eliminates direct compression. These postural recommendations are an essential part of treatment and produce immediate improvement in sleep quality.

Repeated corticosteroid injections at the trochanter treat the bursa — which, in most cases, is not the main cause of pain. Gluteal tendinopathy and trigger points in the gluteus medius do not respond to corticosteroids. Furthermore, multiple injections can weaken the gluteal tendon, worsening the condition long term. Switching to dry needling and therapeutic exercise is the correct approach for this patient profile.