On each side of the pelvis lies a hip joint encased within a synovial fluid-filled capsule (this fluid lubricates the joint so it can move smoothly.) The cartilage-lined hip joint is made up of a ball that is kept firmly in place within a socket by strong ligaments. Hip pain can occur due to an irregularity with any of the joint’s components – or due to an undiagnosed lower back problem.
Due to the close proximity of the hip joints to the lower spine, many people mistakenly think that pain due to a lower back condition is due to a hip problem. Actually, patients experiencing chronic hip pain may feel extreme discomfort in their thighs and groin, as well as their hip.