"Adele underwent vocal cord microsurgery by Dr. Steven Zeitels to stop recurrent vocal cord hemorrhage (bleeding) from a benign polyp. This condition is typically the result of unstable bloodvessels in the vocal cord that can rupture. Based on the advice of her doctor and voice therapist in the United Kingdom, Adele came to Boston to consult and undergo corrective voice surgery with Dr. Zeitels, the Director of the Massachusetts GeneralHospital Voice Center. … Dr. Zeitels expects Adele to make a full recovery from her laser microsurgery."
(Perez)Here's a statement released from the hospital following her procedure: