March 16, 2026
Author: Dr. Alexandru Grecu — Senior Orthopedic and Trauma Surgeon
Medically reviewed by Dr. Alexandru Florian Grecu, Senior Orthopedic Surgeon · Published: March 16, 2026 · Updated: 2 mai 2026
Hip osteoarthritis (coxarthrosis) is the medical term for osteoarthritis of the hip joint. Like knee osteoarthritis, it is a degenerative condition in which the articular cartilage progressively wears away, causing pain, stiffness, and loss of mobility. The hip joint functions as a ball in a socket: the femoral head articulates with the acetabulum. It is the second most common form of osteoarthritis and significantly affects quality of life.
Primary hip osteoarthritis—natural wear and tear related to age, common after 55-60 years of age.
Secondary hip osteoarthritis—caused by congenital hip dysplasia, avascular necrosis, fractures, inflammatory diseases, or femoroacetabular impingement (FAI).
Additional factors: excess body weight, genetic predisposition, activities involving repetitive stress.
Groin pain—the cardinal symptom. The pain is typically felt in the groin, on the front of the thigh, or even referred to the knee. For the same reason, back pain can actually come from the hip.
Stiffness—difficulty putting on shoes, cutting toenails, or getting into a car. Loss of internal rotation is one of the first signs.
Limping—a change in your gait.
Progressive limitation of activities.
Night pain—in advanced stages.
Clinical examination—assessing hip mobility, testing for pain, and evaluating gait.
X-ray—an anteroposterior (AP) view of the pelvis and an axial view of the hip.
MRI—useful in early stages or for evaluating avascular necrosis.
Early to moderate stages: Physical therapy, weight management, hyaluronic acid or PRP injections, and limited use of anti-inflammatory medication.
Advanced stages: Hip replacement.
Hip osteoarthritis doesn't just affect the joint—it affects the whole body. A painful hip alters your posture, overstresses your knees and spine, and dramatically increases the risk of falls, especially in the elderly. Timely treatment isn't just about comfort—it's about safety.