Hip pain is one of the most common complaints that brings people to chiropractors, physical therapists, and orthopedic specialists. It's also one of the most frequently misunderstood. If your hips have been hurting without a clear reason — or if treatments keep helping temporarily but the pain keeps coming back — the underlying cause may be something most people never think to check.
When most people think about hip pain, they think about arthritis, bursitis, a sports injury, or just getting older. Those are all real causes. But there's another cause that's extremely common, frequently overlooked, and — importantly — often very addressable once it's identified.
It's called leg length discrepancy. One leg is measurably shorter than the other.
Studies suggest this affects a large portion of the general population — many estimates place it at half or more of all adults — with differences of a quarter inch or more. The overwhelming majority of these people have no idea. The difference isn't visible in a mirror. It doesn't announce itself. And in routine medical appointments, it usually isn't checked.
But the body knows. Every time you stand, walk, climb stairs, or shift your weight, your body is compensating for that difference. The pelvis tilts. The hip on the shorter-leg side drops slightly with every step. The muscles around that hip — the glutes, the hip flexors, the IT band, the piriformis — work asymmetrically, day after day, to keep you upright and moving.
Over months and years, that asymmetric workload produces pain. Most often in the hip. Sometimes in both hips, because the body overcompensates from one side to the other. And because the underlying imbalance never goes away on its own, the pain keeps returning — even after treatment, even after rest, even after doing everything right.
The pelvis is the key: When one leg is shorter, the pelvis cannot sit level. It tilts toward the shorter side. Every structure attached to the pelvis — the hip joints, the sacroiliac joints, the lower spine, the hip muscles — is then working from a crooked foundation. Treating the hip pain without addressing the tilt is like painting over a crack in the wall without fixing what's shifting underneath it.
Hip pain caused by leg length discrepancy tends to follow recognizable patterns. Not every person experiences all of these, but if several feel familiar, it may be worth investigating further:
The mechanics are straightforward once you understand them. The hip joints are load-bearing structures — they carry your body weight and absorb the impact of every step. When the pelvis is level, that load is shared roughly equally between both hips. When the pelvis tilts, the load shifts.
The hip on the lower side — typically the shorter-leg side — bears more impact and works harder to stabilize the pelvis during each walking stride. The hip flexors on that side become chronically tight. The gluteus medius, the muscle most responsible for stabilizing the pelvis during single-leg stance (which is what walking actually is, most of the time), becomes overworked and inflamed.
Meanwhile, the hip on the higher side compensates by pulling upward. The IT band — the long band of connective tissue running from the hip to the knee — becomes tight on that side. The piriformis muscle, which runs deep in the buttock, can become impinged, sometimes irritating the sciatic nerve and causing pain that radiates down the leg.
This cascade of compensation isn't a sign that anything is structurally wrong with your hip. It's your body doing exactly what it's designed to do — adapting and compensating. The problem is that it's compensating indefinitely, for a difference it was never designed to handle permanently without help.
One of the most common hip pain diagnoses is trochanteric bursitis — inflammation of the fluid-filled sac (bursa) on the outer side of the hip. The treatment typically involves anti-inflammatory medication, corticosteroid injections, physical therapy, or rest.
For many people, these treatments help — temporarily. The bursitis improves, the pain subsides, and then several months later it's back. This cycle repeats itself, sometimes for years.
In many of these cases, the bursitis isn't the root problem. It's a symptom of the mechanical stress being placed on the hip by an uneven foundation. The IT band becomes tight due to pelvic tilt, pulls on the greater trochanter with each step, and irritates the bursa. Treating the bursa helps with the inflammation. But unless the pelvic tilt is addressed, the mechanical stress that caused the inflammation continues — and the bursitis returns.
If you've been through this cycle, it may be worth asking your provider whether leg length discrepancy has been assessed as a possible contributing factor.
The connection between leg length discrepancy and hip pain is well-documented. Orthopedic research has consistently found that even relatively small differences in leg length — as little as 5 to 6 millimeters — can produce measurable asymmetry in how forces are distributed across the pelvis and hip joints during walking. Over time, that asymmetry contributes to degenerative changes in the hip joint on the side bearing the greater load.
Studies examining patients with hip osteoarthritis have found higher rates of leg length discrepancy compared to matched controls. Research on hip replacement surgery — one of the most common sources of surgically-induced leg length change — consistently shows that unaddressed leg length differences following surgery correlate with ongoing hip and back pain in the recovery period.
The practical implication: if one leg is shorter and the difference is left uncorrected, the hip on that side is working harder than it should, every day, for years. The cumulative effect on the joint and surrounding tissue is real and measurable.
If leg length discrepancy is contributing to hip pain, the most direct and least invasive way to address it is to correct the imbalance where it starts — at the ground. A firm, precisely measured insert placed in the shoe of the shorter leg raises the heel by a calibrated amount, which levels the pelvis and reduces the asymmetric stress on the hip.
This type of insert is called a heel lift. Not a cushion, not a gel pad, not a general insole — a firm, wedge-shaped orthopedic insert designed to hold a specific height accurately under the full weight of the body throughout the day.
The height matters enormously. Too little and the correction is insufficient. Too much and the body has to compensate in the opposite direction, which can create new problems. Most people benefit from starting at a lower height and gradually increasing it over several weeks, giving the muscles, joints, and connective tissue time to adapt to a more balanced foundation.
This is why adjustability — in very small increments — is clinically important, not just convenient. A heel lift that can be adjusted by 1 millimeter at a time allows for the kind of gradual, careful titration that produces lasting results rather than a jarring overcorrection.
The Clearly Adjustable heel lift was designed for exactly this — firm, adjustable in 1mm increments, built for daily long-term wear. Learn how it works, why firmness matters, and why it's different from anything on a pharmacy shelf.
Learn About the Clearly Adjustable Heel Lift →If the pattern described on this page sounds like your experience, the most useful next step is a proper evaluation by a healthcare provider who is trained to assess leg length and pelvic alignment. Chiropractors, podiatrists, and physical therapists are often the most likely to include this in their assessment. Orthopedic specialists, particularly those who deal with hip conditions, will also assess for it when it's clinically relevant.
When you see a provider, ask specifically: "Have you assessed whether my legs are the same length, and whether pelvic tilt may be contributing to my hip pain?" That specific question will often open a conversation that a routine appointment might not reach on its own.
For guidance on which types of professionals to consult and what to ask, this page offers a comprehensive overview.
And if you'd like to understand the full picture of what leg length discrepancy does to the body — and what the clinical evidence says about treating it — the Short Leg page covers it in depth.
Hip pain that keeps coming back deserves a better explanation than "that's just how it is." For many people, the explanation — and the solution — turns out to be simpler than years of treatment would suggest. It starts at the foundation.
Disclaimer: This content has been compiled from clinical literature and reputable medical sources for educational purposes only. It is not a substitute for professional medical advice. Hip pain and leg length discrepancy should always be evaluated and managed by a qualified healthcare provider. Some content on this page has been updated using AI. ©2002–2026 Clearly Adjustable.