Written by Dr. Jeffrey Peng, MD — Board-Certified Sports Medicine Physician Published: March 3, 2026 | Last Updated: March 3, 2026 One of the most common and overlooked causes of low back pain is not actually in the low back at all — it is in the gluteus medius muscle. In my practice, I frequently see patients who have been treated for lumbar spine problems for months or even years, only to discover that the true source of their pain is myofascial trigger points in the glute