The most severe form of aphasia, affecting all language modalities (speaking, understanding, reading, and writing). Patients have very limited verbal output and comprehension.

• Speech production: Very limited; may only produce a few words or sounds
• Comprehension: Severely impaired for spoken and written language
• Reading and writing: Severely affected

People with global aphasia have significant difficulty with all forms of communication. They may use gestures, facial expressions, or a few preserved words/automatic phrases (like "yes," "no," or "oh my").

• Action naming therapy with simple, repetitive tasks
• Gesture-based communication practice
• Basic word-picture matching