Quadratus Lumborum Syndrome

The Quadratus Lumborum muscle starts at the top of the pelvis and runs up to the 12th rib of the lower back on both sides of the spine. This muscle is essential for proper stabilization of the pelvis when standing, sitting or walking. It is a prime source for complaints of lower back pain.


Symptoms of Quadratus Lumborum Syndrome can be described as deep, dull back aching pain and a tightness or discomfort in the lower back. Coughing and sneezing could be extremely painful in the back area. The pain could also be so severe that an individual may drop to their hands and knees.


There is a magnitude of potential causes of Quadratus Lumborum pain, including:

Poor Posture – An individual that slouches, sits without back support, or bends the lower portion of their back when sitting may make this muscle sore and tight.

Sitting for long periods of time – Sitting can cause the Quadratus Lumborum muscle to lose blood flow developing a painful and stiff lower back.

Weak surrounding muscles – Muscles that surround the quatratus lumborum that are weaker may make this muscle overcompensate and work harder to support the body.

Trauma – Being involved in a motor vehicular accident, sports injury or common everyday activities can aggravate the muscle leading to pain or discomfort.


If an individual continues to experience any of these signs or symptoms, they should be seen by a specialist to rule out other causes of lower back pain. There are special maneuvers that could be performed by a specialist for a diagnosis. For additional information, you can contact California Sports & Rehab Center at (310)-652-6060 or visit our website at https://emg-ncv.com, (EMG/NCS).We can accommodate your needs in one of our convenient locations in the Los Angeles and Orange County areas.