Musicians like Justin Timberlake, Adele, Björk and Rod Stewart have all had surgery to treat vocal nodes. Nodes are so widely discussed, they've almost become a boogeyman in the singing community. But is this condition really as common as people fear? And when nodes do develop, is all hope truly lost? Featuring vocal coach Katie Talbot and Professor and Chairman of the Ear, Nose, and Throat Department at Drexel University of Medicine Dr. Robert Sataloff.

Twenty Thousand Hertz is produced out of the studios of Defacto Sound and hosted by Dallas Taylor. Follow the show on Twitter, Facebook, & Reddit.Become a monthly contributor at 20k.org/donate. If you know what this week's mystery sound is, tell us at mystery.20k.org. Learn how you can protect your voice at nidcd.nih.gov.Episode transcript, music, and credits can be found here: https://www.20k.org/episodes/vocaldiscordsLearn more about your ad choices. Visit megaphone.fm/adchoices