Language disorders involve problems processing linguistic information and can affect grammar, semantics, and other aspects of language. They can be receptive, involving comprehension, expressive, involving production, or both. Common examples are specific language impairment and aphasia. Receptive language disorders impair understanding of input while expressive disorders affect output. Symptoms vary but can include difficulties with sentences, vocabulary, instructions, and frustration. Other types of language disorders discussed are sensory impairments, apraxia, dyslexia, dysgraphia, stuttering, autism, and ADHD.