What are the signs/symptoms of avascular necrosis of the hip?

Pain pain limpping: Many people have no symptoms in the early stages of avascular necrosis of bone. As the disease worsens, your affected joint may hurt only when you put weight on it. Eventually, the joint may hurt even when you're lying down.Pain can be mild or severe and usually develops gradually.Pain associated with avascular necrosis of the hip may be focused in the groin, thigh or buttock.