The 17-year-old has cleidocranial dysplasia, which affects the growth of his bones and teeth.
This will be the fourth procedure for Gaten who didn’t appear worried and frightened when posting a pic from his hospital bed with a thumbs up to social media on Wednesday.
“Surgery number 4! This is a big one!” he wrote on Instagram.
Gaten admits that this disease is a big reason for his career stalling-
“It’s one of the reasons why I haven’t been getting roles, because of my lisp, and the teeth situation, and my height,” he said in 2018, during an appearance on The Doctors. “That affected pretty much everything. I would go three times a week for auditions all the time and get constant ‘no.’ ”
But Gaten says that his disorder actually helped him land the role of Dustin of Stranger Things!
Matarazzo now works with CCD Smiles, a non-profit organization that raises money and awareness for people with the condition. He told PEOPLE