Medical misinformation and AI-generated health content are spreading rapidly across social media platforms, with fake doctors and misleading health advice reaching millions of viewers. Leading Australian medical organisations, including the Australian Medical Association and the College of General Practitioners, are warning that false information about vaccines, pregnancy, and treatments is undermining decades of medical science and putting lives at risk. Doctors report spending increasing amounts of clinic time reassuring patients about fake health claims, while diseases like measles are beginning to re-emerge due to vaccine hesitancy.