[header] How to detect symptoms of avascular necrosis [title] Know that stabbing, shooting pain is the only major symptom. [step] As the bone or joint is breaking down, it will manifest as sharp pains that are often described as stabbing, shooting, tearing or piercing. If you have avn in your hip, this pain will be more focused in the groin, thigh and buttocks. 
[substeps] It is easy to detect the symptoms of having avn as it has only one: pain. Unfortunately, avn is painless at first, so if you experience pain, it means that avn is getting worse.