It's been reported that NMB48's Yamamoto Sayaka had surgery done on her vocal cords.
Yamamoto made a live telephone appearance on the August 26 broadcast of Nippon Broadcast's "AKB48 no All Night Nippon". She revealed, "I didn't say anything because I thought that it would cause people to worry, but I received vocal cord surgery the other day." She also shared her current condition, "I am currently†receiving treatment in order to recover completely. I'm unable to speak loudly, nor sing†for a long†period of time, but I am trying to be active without exerting myself."
Yamamoto also made the announcement on Twitter, "I received a live telephone call the other day, and announced that I had received surgery on my vocal cords." She apologized to her fans, "I'm sorry to make everyone worry," and continued, "I will recover completely, get voice training, and grow."
Source & Image: Model Press†