The common locations of lumbar pain and its etiology are as follows: First, muscle pain on both sides of the lumbar spine, which is often seen in lumbar muscle strain. Second, muscle pain on one side of the lumbar spine, which is seen in acute lumbar sprains, can also be felt as localized muscle striated spasms during episodes. Third, in the cribriform angle and cribriform angle, which is the area where the 12th rib intersects with the spine. Pain in this area suggests the presence of kidney-related diseases, such as pyelonephritis or stones in the kidney. Fourth, pain in the transverse process of the 3rd lumbar vertebra is usually seen in the 3rd lumbar transverse process syndrome. Fifth, pain in the posterior superior iliac spine, which some people also call the lumbar eye, is seen in local muscle and tendon strains.