A tight or irritated psoas does not mean your organs are being “pushed out,” and it does not explain every belly or back problem. Belly shape can also be affected by body fat, bloating, pregnancy history, posture, weak abdominal muscles, digestive issues, or medical conditions. But when a forward-tilted pelvis, tight hips, and lower back stiffness appear together, the psoas may be part of the picture.
What Is the Psoas Muscle?
The psoas helps lift the thigh toward the body. You use it when walking, climbing stairs, getting out of a chair, running, or bringing your knee upward.
Because it connects near the lumbar spine, problems around the psoas may feel like lower back pain, hip tightness, groin discomfort, or stiffness after sitting. Cleveland Clinic explains that psoas syndrome can cause pain in the lower back, hip, groin, buttocks, or pelvis and may make standing, walking, or moving more difficult in severe cases.
How a Tight Psoas Can Affect Posture
