Wernicke's aphasia is a type of language disorder that affects a person's ability to understand and produce meaningful speech. It occurs when there is damage to the Wernicke's area, a region in the brain responsible for language comprehension. Individuals with this condition may speak in long, nonsensical sentences and often use made-up words, making their speech difficult to understand. People with Wernicke's aphasia typically have fluent speech but lack awareness of their language difficulties. They may struggle to follow conversations and often do not realize that their communication is impaired. This condition is commonly associated with stroke or other brain injuries affecting the left hemisphere of the brain.