Even the rich and famous aren't immune to medical errors. From missed tumors to mixed-up lab results, these celebrities spent months or even years being told the wrong thing about their health, sometimes with life-changing consequences. Their stories are powerful reminders for us to trust our instincts, ask questions, and seek second opinions. Some found relief, others heartbreak, and many have now turned their ordeals into advocacy.
Click on to read what 15 stars went through.