 He still performed regularly until 2017, despite the condition of his legs.In March 2018, it was reported that Heechul would not be participating in music show performances of Super Junior's repackage album "Replay" due to health concerns, but would still participate in other promotions as normal.On July 20, Heechul announced his decision not to participate at all on their first mini album "One More Time" to focus on recovering his health in a Weibo live video.