Patient: Description of condition (onset, main symptoms, hospital visited, etc.): Male, 39 years old, hoarse voice, started on April 25, 2011, and was seen twice in May and prescribed medication, both fire-reducing and anti-inflammatory, as well as an ultrasound and endoscopy of the larynx. The doctor said it was caused by the immobility of the vocal cords on the right side. It will slowly improve. But it’s been almost two months and I’m still not getting any results. Is there any other reason or means to treat it as soon as possible? Li Pingdong, Department of Otolaryngology, Head and Neck Surgery, Tong Ren Hospital, Beijing, China: If the endoscopy is clear that one side of the vocal folds is not moving, the medical term is vocal fold paralysis, and the cause needs to be investigated. First, laryngeal vocal cord lesions: laryngoscopy can generally be found, if necessary, CT; second, laryngeal nerve examination of the adjacent organs of the neck: thyroid neck ultrasound, esophageal examination such as imaging or gastroscopy; third, laryngeal nerve (left) thoracic section: chest film or chest CT; fourth, cranial lesion examination: MRI, CT.