SF9's Zuho will take a brief hiatus from promotions, as a result of a persistent back injury.
On February 13, SF9's label FNC Entertainment stated, "Zuho's lower back injury, which he has been receiving continuous treatment for since a while back, recently worsened while preparing for the group's comeback and practicing the comeback choreography; as a result, we visited the hospital and received advice that he must focus on rest and treatment for approximately 3 weeks, refraining from physical activity."
The label went on, "Luckily, we have finished his album recording, jacket photoshoot, and partial MV filming, and although Zuho's personal wish to promote with his members was evident, we have concluded after a serious discussion that he will be absent from this comeback's promotions."
SF9 plan to make a comeback with their 6th mini album 'Narcissus' on February 20; they'll be promoting on stage as 8 members, without Zuho. We hope for Zuho's speedy and complete recovery.
It sounds like FNC isn't going to send him for back surgery, which is the best treatment for a bad disc. I hope he gets better soon, no matter what they decide to do for him.