Grey's Anatomy season 16 episode 18 review: DeLuca's breakdown.
Why does DeLuca have breakdown?
While the breakdown is presumably due to his family history and he's not entirely to blame, he needs to face some serious consequences. DeLuca's breakdown was serious enough that his fellow doctors at Grey Sloan surrounded him, believing he was a danger, and Bailey called security on him.
Does DeLuca have a mental breakdown?
The Grey's Anatomy Season 16 finale ended without explaining what happened to DeLuca. But Station 19 Season 3 revealed DeLuca received a bipolar disorder diagnosis. ... “DeLuca is bipolar,” Vernoff told People in May 2020. “DeLuca was in a really manic state for an extended period of time.