Aphasia occurs when a person loses the ability to produce or understand spoken or written language. Many possible causes exist for the disorder. These include stroke, tumors, brain injury, certain surgeries, bacterial or viral infections, and some neurological conditions. It is not caused by sensory or muscle problems or compromised cognitive skills. Patients whose aphasia is caused by stroke or head injury typically see improvement, especially after speech therapy. Those with primary progressive aphasia – a syndrome involving progressive language difficulty – continue to lose their ability to read, speak, write, or comprehend the spoken word. Learning new communication strategies is often helpful for these patients. Speech and language therapy aims at helping aphasia patients regain lost function and compensate for difficulties.
P.S. Aphasia identification cards can help communicate a person’s condition to others.