 Hi, this is Dr. Ravi Chandrakelkar, Senior Orthopedic Surgeon, Columbia Shehebal, a unit of Manipal Hospital. Today I will be talking about AVN, what that means is Avascular Necrosis of the Femoral Head. This basically means there is lack of blood supply to the ball of the hip joint, leading on to a condition called bone death. This has become common now because of the Covid pandemic. So patients who have had Covid infection, the chances of what we call blood clotting or venous thromboembolism is high and also most of the Covid patients are treated with steroids which can lead to this AVN called bone death. So what happens is when there is lack of blood supply to the ball, it leads to wear and tear of the ball eventually leading on to difficulty in walking, any sort of pain in the region of the hip or the thigh bone or any discomforts in the groin region or if you feel there is some sort of problem in the hip and groin area post your Covid infection, I would recommend you meet your local orthopedic surgeon as soon as possible so that we can detect this early. So if you detect it early, there are treatments like calcium, bisphosphonates, minimally invasive surgery is called code compression where we can try to save the ball of the hip joint. If it eventually leads to severe AVN, it can lead to severe arthritis and you might eventually end up needing a costly and a complex surgery called hip replacement. So the idea of this is to prevent that so look out for those early signs and meet your doctor as soon as possible. Thank you.