Aphasia is a communication disorder that affects a person's ability to speak, understand language, read, and write. It is typically caused by damage to the brain, most commonly from a stroke, head injury, or neurological condition. Research in aphasia focuses on understanding the underlying causes of the disorder, developing effective assessment tools and treatment strategies, and exploring the neural mechanisms of language processing in the brain. This research aims to improve the diagnosis and management of aphasia, ultimately helping individuals with the disorder to communicate more effectively and improve their quality of life.