The short answer
Avascular necrosis, or AVN, develops when blood supply to part of the hip's femoral head is disrupted. Treatment depends on the extent of damage and whether the surface has collapsed. Early assessment can clarify whether joint-preserving options remain.
Understanding the problem
Pain may be felt around the groin or buttock and can interfere with weight-bearing. X-rays and sometimes MRI help define the changes. Risk factors include certain injuries, substantial alcohol exposure and corticosteroid use, although the cause is not always clear.
Care and next steps
Symptom control and reduced loading may be discussed, while selected early cases may be considered for a hip-preserving procedure. More advanced damage can lead to a replacement discussion. Do not stop prescribed steroids abruptly; discuss them with the prescribing clinician.
Prepare for your consultation
Bring all hip imaging, including earlier studies that might show progression. List steroid medicines and previous hip injuries without trying to decide which one caused the problem. Ask the clinician to explain the stage, the goal of each option and how long a joint-preserving approach is expected to be monitored. Discuss the consequences of postponing treatment for your particular findings.
Common questions
Is every diagnosis of AVN treated with hip replacement?
No. Stage, symptoms and the condition of the joint influence the available options.
Medical sources & further reading
This patient education guide was approved for publication by Dr Shahrukh Khan on 11 September 2026. It cannot diagnose your symptoms or replace a personalised clinical assessment. Editorial policy · About the doctor.