Outer Hip Pain When Lying On Your Side

You roll onto your side, settle in, and the ache over the bony point of your hip starts up. Outer hip pain when lying on your side is most often caused by problems in the gluteal tendons on the outside of the hip — commonly gluteal tendinopathy, sometimes called trochanteric bursitis, and in some cases a gluteal tendon tear — where the tissues are compressed against the greater trochanter rather than coming from a worn-out joint.

We see this often at MTP Health, especially in women aged 40 to 70, runners, walkers, and anyone whose sleep or daily activity is being limited by lateral hip pain.

This guide explains why side-lying aggravates it, how tendinopathy, bursitis, and tendon tears differ, which sleeping positions usually help, how we assess and treat it, and when symptoms need urgent care or a surgical opinion. In most cases it is very treatable with the right assessment, simple positioning changes, and a structured strengthening plan.

Key Takeaways

• Outer hip pain at night is usually gluteal tendinopathy, trochanteric bursitis, or a gluteal tendon tear, and the three often overlap.
• Lying on the painful side compresses the gluteal tendons against the greater trochanter, which is why night is often the worst time.
• Positioning changes reduce compression, but lasting improvement usually comes from a progressive strengthening program.
• Weakness, a limp, or no progress after proper rehab suggest a tendon tear and warrant an orthopaedic opinion.
• At MTP Health the physiotherapy and exercise physiology team leads recovery, with Dr Donald Cawthorne reviewing the few cases that may need surgical repair.

Why Lying On Your Side Hurts: Understanding Lateral Hip Pain

The gluteus medius and gluteus minimus tendons, part of the gluteal muscles, attach to the greater trochanter, the bony point on the side of the hip, with a small bursa cushioning them.

When you lie on that side, your body weight presses these soft tissues against the bone. If the muscles and tendons are irritated, that compression is enough to wake you. It is a pattern we see every week at our orthopaedic and physiotherapy clinic on Sydney’s North Shore.

Lying on the other side can hurt too. If the painful leg drops forward across your body, the tendons are stretched over the trochanter and compressed in a different way.

Many people describe a deep ache, sometimes a burning pain, that spreads a short way down the outer thigh and upper thigh, with sharpness when they roll over. Night pain feels worse because you are still, with the tendon loaded in one position for long periods. These are common symptoms of the condition.

Tendinopathy, Bursitis Or Tear

Three related hip conditions cause this pattern, often together under the label greater trochanteric pain syndrome. Gluteal tendinopathy is the most common.

The tendon has become sensitive because load or compression has risen faster than it can adapt, whether from a jump in walking, a new exercise class, climbing stairs and hills, or years of standing with your weight dropped onto one hip. Muscle weakness and weak or tight muscles around the pelvis add to the load.

Hip bursitis, or trochanteric bursitis, is irritation of the cushioning bursa, one of the small fluid filled sacs that let tendons glide, and this plain-language overview of bursitis explains the basics. For years it was the default label for any pain on the outside of the hip, but the bursa is rarely the main driver on its own. It usually flares because the tendon underneath is already struggling.

A gluteal tendon tear is the one that changes the plan. Tears can be partial or full thickness and tend to develop gradually. The clues are weakness rather than just pain: difficulty standing on one leg, restricted movement, a limp or a pelvis that drops on one side when you walk, or a tendon that has not responded to a well-run loading program. Left untreated, a tear can slowly worsen.

A tear does not always need surgery, but it does need to be identified so rehab can be pitched correctly, which is why we assess gluteal tears and bursitis together. Other sources of outer hip and buttock region pain, such as referred pain from the sacroiliac joints or the sciatic nerve, a hip flexor strain in the hip flexors at the front, tight muscles in the iliotibial band or IT band, or the catching of snapping hip syndrome, are checked at the same time so you get a proper diagnosis.

Who Tends To Get This

Women between 40 and 70 are the group we see most often, and pelvic shape and hormonal changes around menopause are thought to play a part. Inflammatory conditions such as rheumatoid arthritis can also irritate the tendons.

Runners and walkers who have increased distance or added hills are next. Habits matter as well: prolonged sitting with the legs crossed, standing with one hip hitched out, and sleeping with the top knee dropped forward all add compression to the affected hip.

If a long day in a chair is your main trigger, hip pain when sitting has its own causes. If your pain is in the groin rather than over the side of the hip, the hip socket and the ball and socket joint itself is the more likely source, whether from hip osteoarthritis or, less often, avascular necrosis where reduced blood flow affects the bone, and that is a different conversation.

Sleeping Positions and Treatment Options That Help

If you can sleep on your back, do so for now. If you are a committed side sleeper, lie on the unaffected side with a firm pillow between your knees and ankles so the top leg stays level with your hip. A softer mattress topper or a folded towel under the sore hip can help when you do roll onto it, and gives some pain relief overnight.

During the day, stand with your weight evenly on both feet, and change standing positions frequently rather than hanging on one hip. Uncross your legs at your desk, and avoid deep stretches that pull the knee across your body, because they compress the very tendon you are trying to settle.

Try to stay active within comfortable limits, including simple balance work like standing on one leg for 30 seconds, and these measures buy comfort while strengthening exercises build a tendon that can tolerate normal life again. When carrying heavy items, distribute weight evenly to reduce strain through the hip. Heat therapy can relieve pain and improve range of motion overnight or before activity.

How MTP Health Assesses It

Assessment starts in the clinic, not on a scan. Your physical therapist takes a medical history, then a physical examination maps where the pain sits in the hip area, tests the strength of your hip abductors and hip muscles, watches how you walk and stand on one leg, and checks your lower back, sacroiliac joints and hip joint so nothing is missed. Ultrasound or MRI is reserved for cases where a tear is suspected, progress has stalled, or the presentation does not fit.

The core of recovery is a progressive loading program run by our physiotherapy and exercise physiology team. Drawing on sports medicine, this physical therapy begins with gentle isometric holds that calm the tendon and reduce pain, moves into hip and pelvic control work, and builds toward the walking, stairs, and sport you want back.

These conservative treatments are the first choice and improve symptoms for most people, with almost 80% improving with physical therapy in eight weeks.

Most people notice a change within six to twelve weeks, with full capacity taking several months. A flare-up along the way does not mean damage has occurred.

Where symptoms are stubborn, a healthcare professional or GP can discuss pain medicines or injections for hip pain to reduce inflammation, and over-the-counter medications such as ibuprofen can reduce pain.

Corticosteroid injections, sometimes called steroid injections, can provide rapid relief for severe pain in the short term, though corticosteroid injection use is limited because repeated injections can weaken the tendon, so they are used sparingly alongside the loading program rather than instead of it.

Where a tear is confirmed and pain or weakness persists despite a genuine rehab effort, Dr Donald Cawthorne assesses whether gluteal tendon repair, one of the surgical treatments for this problem, is appropriate, with surgical options considered if conservative treatments fail.

Hip surgery for this hip injury can be performed through open or keyhole techniques to reattach the connective tissue, and is followed by a structured recovery with the same team who managed your rehab. Surgery is one part of a longer journey, carries risks such as infection, stiffness, and re-tear, and suits a small minority. Non-surgical care remains the first choice.

When To Book Sooner

Book an assessment promptly if you cannot stand on the affected leg or affected side, you have developed a new limp, or your night pain is constant and does not change when you shift position. Pain that began with a fall deserves an early review. Otherwise, if outer hip pain has disturbed your sleep for more than two or three weeks, that is reason enough to have it looked at to relieve pain and reduce symptoms before they settle in.

Frequently Asked Questions (FAQs)

Why does my hip hurt when I lie on my side at night?

Lying on your side presses the gluteal tendons and bursa against the greater trochanter. If those tendons are irritated, the pressure produces a deep ache that can wake you. Lying on the other side with the top leg dropped forward can compress them just as much.

Is hip pain when lying on your side serious?

Usually not. Most cases are gluteal tendinopathy or bursitis, which settle with load management and strengthening. Weakness, a limp, or pain that does not improve with good rehab may indicate a tendon tear and warrants an orthopaedic review.

Should I sleep with a pillow between my knees?

Yes, if you sleep on your side. A firm pillow between the knees and ankles keeps the top leg level with the hip and reduces compression on the outer hip tendons. Sleeping on your back is a good alternative while symptoms settle.

How long does gluteal tendinopathy take to settle?

Many people notice improvement within six to twelve weeks of starting a progressive strengthening program, but the hip and surrounding muscles need time to regain strength and control during recovery. Restoring full strength for hills, long walks, or sport often takes several months. Long-standing symptoms tend to take longer.

When would a hip surgeon need to be involved?

A surgical opinion is worthwhile when imaging confirms a gluteal tendon tear and pain or weakness persists despite a proper rehab program. Dr Donald Cawthorne assesses whether tendon repair is suitable, but this applies to a small minority of people with outer hip pain.

Conclusion

Outer hip pain when lying on your side is common and very treatable once you know which structure is involved. A clinical assessment, a few positioning changes, and a well-paced strengthening program give most people their sleep back, with surgical review for the few who need it. If your hip is waking you at night, book an assessment with MTP Health on (02) 9437 9794 and let the team build a plan around your goals.