
What Can I Do So AVN Pain Doesn’t Control My Life? Understanding Avascular Necrosis Avascular necrosis (AVN) , also called osteonecrosis, is a condition in which bone tissue dies due to insufficient blood supply. Bones need a steady flow of blood to stay healthy and repair themselves. When circulation is compromised, the bone weakens and eventually collapses. The hip joint is the most commonly affected site, though AVN can also impact the knees, shoulders, and ankles. Because these joints are essential for weight-bearing and mobility, the progression of AVN often causes significant pain and functional limitations. What Causes Avascular Necrosis? AVN is not caused by a single factor. Instead, it results from a combination of risks and underlying conditions: Injury or trauma : A fracture or dislocation that damages blood vessels. Excessive alcohol use : Long-term heavy drinking can increase fat deposits in blood vessels, reducing circulation. Corticosteroid use : Prolonged ...