Doctors fear Avascular Necrosis (AVN) could be the next dreadful condition in post-coronavirus patients after the deadly outbreak of mucormycosis or Black fungus in India. AVN is the death of bone tissues due to a lack of blood supply. It can lead to tiny breaks in the bone, causing the bone’s eventual collapse. At least three confirmed cases of AVN have been reported among coronavirus survivors in Mumbai. Treatments for the disease include physiotherapy, surgery, and medication.