Ans. It is clear that prevention is better than cure. Instead of suffering pain and facing medical issues, one should be attentive and follow the preventive steps to avoid avascular necrosis. They are - Smoking and drinking alcohol should be under the limit. One should not get addicted, which leads to complicated situations.Should monitor the cholesterol level frequently and always try to maintain less cholesterol in the body.Should take the guidance of a family doctor who knows about the past and present tense of your health while using steroids. According to the prescription, only one should need to use steroids. The over usage of steroids causes avascular necrosis.A regular minimum physical activity is always to keep the body fit and healthy.