Aphasia
inability to speak well
Aphasia is damage to the brain which affects speech. It is used for all forms of brain damage which negatively affects speech.
![](http://upload.wikimedia.org/wikipedia/commons/thumb/4/42/Aphasia.png/250px-Aphasia.png)
The damage may cause muteness, in which case treatment depends on knowing exactly what caused the aphasia.[1]
The condition primary progressive aphasia is serious because it is progressive. It gets worse with time.