Osteoarthritis
This is a degenerative joint disease that occurs when the cartilage that cushions the bones in the hip joint wears down over time.
As the cartilage deteriorates, bone-on-bone friction occurs, resulting in pain, stiffness, and decreased range of motion in the hip.
Hip osteoarthritis is mostly seen in older individuals, but it can occur at any age. It is generally caused by a combination of genetic and lifestyle factors.