Aphasia is damage to the brain which affects speech. It is used for all forms of brain damage which negatively affects speech.
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.
References
Wikiwand in your browser!
Seamless Wikipedia browsing. On steroids.
Every time you click a link to Wikipedia, Wiktionary or Wikiquote in your browser's search results, it will show the modern Wikiwand interface.
Wikiwand extension is a five stars, simple, with minimum permission required to keep your browsing private, safe and transparent.