What Causes Short Leg Syndrome?
What Causes Short Leg Syndrome?
What does it mean if you have a “short leg?”
If you’ve ever been to a massage therapist, chiropractor of physical therapist, you may have been told that you have a short leg.
There are a few signs you might notice yourself that you have a “short leg:”
- Chronic injuries down one side of your body
- Uneven shoe wear (especially runners)
- Your pants are uneven (especially if you visit a tailor!)
- Shifting your hips side-to-side when you stand upright
- Constant tension in one of your shoulder blades
The Truth Behind Short Leg Syndrome: A Neuromuscular Reflex
Many people mistake a “short leg” for an actual difference in leg length, when it’s really an illusion caused by neuromuscular tension throughout the body. This condition, often called a “contracted” or “reactive leg,” happens when the brain triggers a reflex response that changes muscle tone and posture.
Spinal injuries in the neck, shoulders, or lower back can activate what’s known as the vestibulospinal reflex. When the spine loses normal mobility or function, the brain adjusts posture from the neck down to the feet to keep the head balanced and upright. This reflex can make one leg appear shorter when you lie down.
There are Two Types of “Short Legs”
From the research, we know that almost every single human being has an anatomically short leg. It is a condition known as anisomelia.
The reason this happens is because of physical injuries that happen when we are little kids. Any number of bumps, scrapes and bruises can cause microscopic damage to our bones and muscles. As a result, one leg commonly grows slightly longer than the opposite side.
Typically, it is not until an imbalance exceeds 6mm (1/4”) that we begin to experience problems with our muscles and joints.
- In the same breath, your body has an innate intelligence that works to adapt for these small imbalances.
- One hip bone grows slightly higher to accommodate for the short leg.
- Your sacrum (tailbone) grows thicker on one side to maintain the balance of your spine.
- Your feet shift your center of gravity to balance your body.
Our point here is that although almost everyone has a short leg, your legs should appear balanced (within 3mm or 1/8”) when you lie down or stand upright.
Short Leg Syndrome and Body Imbalance
What many call a “short leg” is often an illusion caused by neuromuscular tension throughout the body. This is sometimes referred to as a “contracted” or “reactive leg.” In simple terms, it’s a reflex response produced by the brain itself.
Research shows that injuries to the spine—whether in the neck, shoulders, or lower back—can trigger what’s known as the vestibulospinal reflex. When spinal mobility or function is disrupted, the brain adjusts posture from the neck down to the feet to keep the head balanced and upright. As a result, when you lie down, this reflex can make one leg appear shorter than the other.
Over time, these imbalances can cause a number of health problems:
- Headaches
- Neck pain
- Shoulder pain (chronic tightness in your upper back)
- Low back pain (including bulging discs sacroiliac joint dysfunction)
Arthritis - Scoliosis
- Hip, knee and ankle pain.
In this way, “bad posture” is not always a matter of laziness. Your posture is an outer reflection of the health and function of your inner body.
What does it mean if my “Short Leg” keeps coming back?
Many people are told their short leg comes from a twisted pelvis or a problem in the lower back, but it’s often more complex than that.
If you visit a chiropractor or physical therapist regularly and keep hearing that you’re “out of alignment,” or if you feel great after a massage only for the tightness to return within days—or even hours—it’s a sign that something deeper is causing the issue.
The body is designed to heal itself, so if your pain keeps returning, the true problem is likely coming from another area. In many cases, one of the most overlooked sources of tight muscles and a “short leg” is the neck.
Upper Cervical Care – A Different Approach
Upper cervical care focuses on correcting the root cause of pain rather than just treating the symptoms. Many people with chronic pain in the low back, hips, or legs actually have misalignments in the neck. These imbalances affect how the brain maintains posture through the vestibulospinal reflex, often leading to muscle tension and the appearance of a “short leg.”
The Blair Technique provides a gentle and precise form of upper cervical chiropractic care without any stretching, twisting, or cracking. Using advanced imaging such as digital articular X-rays or CBCT scans, practitioners locate the exact source of imbalance and make a customized correction. This process helps restore natural motion and alignment throughout the body—from the head down to the feet.
If traditional chiropractic, massage, or physical therapy haven’t given you lasting relief, the Blair Technique may offer a better solution. For those in Spokane, visit our home page or schedule an appointment at our Mead (North Spokane) or South Hill locations by calling 509-315-8166 or completing a new patient request form.