Laryngitis, vocal cord nodules, and damage to the laryngeal nerve may be related to the difficulty in pronouncing the words. 1. Laryngitis: due to the stimulation of inflammation, there can be redness, swelling, pain and other symptoms of the mucous membrane of the pharynx, resulting in the voice to speak hard to pronounce hard. 2. Vocal cord nodules: often manifested as hoarseness, speech, pronunciation will be more laborious. 3. Damage to the recurrent laryngeal nerve: If the recurrent laryngeal nerve is damaged as a result of thyroid surgery, hoarseness, difficulty in speaking and pronunciation may occur. It is recommended that people who have difficulty speaking and pronouncing their voices should go to a regular hospital in time to clarify the cause of the disease and carry out standardized treatment under the guidance of a doctor, so as to avoid adverse effects on the body due to delays in the disease.