Background: Patients with head and neck cancer often experience severe stomatitis that influences eating during radiotherapy.This phenomenon is very common.Percutaneous endoscopic gastrostomy (PEG) is a common solution to enteral nutrition,but it seems to be seldom used in the process of radiotherapy.Few studies have focused on radiation oncologists attitudes about using PEG to solve the difficulty in feeding patients with head and neck cancer in the process of radiotherapy.