10 Surprising Reasons Why Your Hip Might Be Hurting

7. Sacroiliac (SI) Joint Dysfunction: The Unstable Foundation

Often overlooked, dysfunction in the sacroiliac (SI) joint – located where the spine meets the pelvis – can cunningly manifest as significant hip pain. This isn't a hip joint problem, but a misalignment or inflammation in the joint that transmits forces between the upper body and legs. Pain typically presents in the lower back, buttock, or outer hip region, often worsening when sitting, standing on one leg, or climbing stairs. Its deceptive nature lies in its ability to mimic both hip and lower back issues, requiring precise diagnosis to stabilize this crucial, often misbehaving, foundational joint.

8. Femoroacetabular Impingement (FAI): The Hip's Hidden Pinch

FAI, or "hip impingement," is a less obvious cause of hip pain resulting from an abnormal bone shape within the hip joint itself. This isn't wear-and-tear; it's a structural issue where the thigh bone (femur) or hip socket (acetabulum) unnaturally "impinges" or rubs during movement. Pain is typically felt in the groin or outer hip, often with activities like squatting, turning, or sitting for long periods. Its insidious nature is its progressive damage to cartilage and labrum if left untreated, making early detection of this subtle anatomical mismatch crucial for preserving joint health.