His label told DongA.com, "It's true he has a bone tumor, but it's benign, not malignant. There won't be any effect on his everyday life. We just have to watch how it is. We never said he was sick, so we don't know where that started. His health is fine. It's not so serious that he's sick or that he needs to get treatment. We hope there aren't any misunderstanding through exaggerations. We're just burdened that family or friends would see and get worried."
The label added, "He also did have a fracture, but that's separate from his tumor. They're not even related. We're confirming that there are no big problems to his health. Yoo Ah In was classified as needing a re-examination [for enlistment], so we're waiting for the next examination. We're only following the procedure. We hope people stop overexaggerating or misinterpreting."
It's a relief to hear he's healthy!