Several speech disorders exist that cause a person to repeat words in a random or persistent manner, and the diagnosis of aphasia may include a test for repetition ability. Information from the National Institute on Deafness and Other Communication Disorders indicates that damage to a large portion of the language centers of the brain may result in significant communication problems. Sufferers may begin to repeat short phrases over and over, or they may begin to utter the same few words repeatedly. An inability to understand words and short sentences, as well as the persistent repetition of words, may indicate a person is suffering from global aphasia.Next