Ashton Kutcher, Justin Bieber, Selena Gomez and more share terrifying health scares

Ashton Kutcher recently revealed he lost his ability to see or hear due to vasculitis, a rare autoimmune disease. Other celebs have been transparent about their health challenges.

"This is extremely important as we are living longer and with chronic illness. By normalizing the conversation, more people will seek treatment and are able to support others." "Often times when people see someone they ‘know’ talking about a health struggle, others who may be facing something similar feel as though they are not alone in their struggle. It can also encourage others to seek medical evaluation and treatment." "Michael J. Fox also has been forthcoming with his Parkinson's disease diagnosis, making it a household name rather than an obscure neurological condition that most people haven't heard of. " Caroline Thayer is an entertainment writer for Fox News Digital. Follow Caroline Thayer on Twitter at @carolinejthayer.

But there can be a silver lining when stars go public with their health struggles. Dr. Nicole Saphier, a New York City physician, Fox News contributor and best-selling author of "Make America Healthy Again," says this generation normalizes speaking about illness in a way previous generations did not.  A post shared by Justin Bieber (@justinbieber) A post shared by Selena Gomez (@selenagomez)