Lumbar Lordosis: Symptoms & Signs

Medically Reviewed on 4/15/2021

Lumbar lordosis is the inward curve of the lumbar, or lower, spine in the lower back. A small degree of lordosis (inward curvature) is normal, but excessive lordosis can result from underlying disease and conditions of the spine.

Symptoms and signs of lumbar lordosis can include

  • an appearance of being swayback or having an abnormal posture with an arched lower spine,
  • the buttocks appearing more pronounced, or
  • having a large gap or arch between the lower back and a flat surface when lying on your back.

In some people, there can be discomfort and/or back pain or difficulty in moving certain directions.

Causes of lumbar lordosis

Causes can include discitis, bad posture, previous spine surgery, pelvis or hip injury, and genetic factors.

Other lumbar lordosis symptoms and signs

  • Appearance of Being Swayback or Having an Abnormal Posture with an Arched Lower Spine
  • Back Pain
  • Buttocks That Appear More Pronounced
  • Difficulty in Moving in Certain Directions
  • Having a Large Gap or Arch Between the Lower Back and a Flat Surface When Lying on Your Back


Nearly everyone has low back pain at some time during their life. See Answer

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Jameson, J. Larry, et al. Harrison's Principles of Internal Medicine, 20th Ed. New York: McGraw-Hill Education, 2018.