Aphasia, apraxia or dysarthria? Understanding what your loved one has
The three main speech problems after a stroke explained in plain language — how aphasia, apraxia of speech and dysarthria differ, and why the difference changes how you practice.
Updated: 2026-07-06 · Leer en español
Key points
- Aphasia is a LANGUAGE problem: finding and understanding words.
- Apraxia of speech is a PLANNING problem: the mouth won't cooperate with the plan.
- Dysarthria is a MUSCLE problem: weak or slow speech muscles slur the sounds.
- They can occur together, and only a speech-language pathologist can diagnose them.
- None of them means lost intelligence.
What is aphasia?
Aphasia is a language disorder: the stroke damaged areas that store and retrieve words, so finding words, understanding speech, reading or writing becomes hard. It is the most common language problem after stroke.
Someone with aphasia may know exactly what they want to say but can't retrieve the word — like a name permanently on the tip of the tongue. Others speak in long sentences that don't quite carry meaning, or struggle to follow conversation.
What is apraxia of speech?
Apraxia of speech is a motor-planning disorder: the words are there, the muscles are strong, but the brain struggles to coordinate the precise mouth movements to produce sounds in the right order.
The telltale sign is inconsistency — the same word comes out perfectly one moment and scrambled the next, and the person often knows immediately that it came out wrong. Longer words are usually harder than short ones.
What is dysarthria?
Dysarthria is a muscle problem: the stroke weakened or slowed the muscles of the lips, tongue, throat or breath, so speech sounds slurred, quiet, slow or strained.
Unlike apraxia, dysarthria is usually consistent — the same sounds are hard every time. Language itself is intact: the person finds words normally; they are just physically hard to pronounce clearly.
How can I tell which one my loved one has?
You can observe patterns, but the diagnosis belongs to a speech-language pathologist (SLP) — and many people have a mix of two or even all three.
Rough guideposts: trouble FINDING or UNDERSTANDING words points to aphasia; inconsistent, effortful sound errors with self-awareness point to apraxia; consistently slurred or weak-sounding speech points to dysarthria.
Write down five things you've noticed and bring them to the evaluation — real examples (“she says 'no' when she means 'yes'”, “long words fall apart”) speed up an accurate diagnosis.
Does the type change how we should practice?
Yes — this is exactly why the distinction matters. Aphasia practice centers on words and meaning: naming, matching, conversation. Apraxia practice centers on sound sequences: slow, deliberate repetition that rebuilds the motor plan. Dysarthria practice centers on strength and clarity: pacing, breath, exaggerated articulation.
Whatever the mix, the same rules hold: short daily practice, personally meaningful words, and patience with the bad days.
Daily practice is what moves the needle
Sona gives free daily speech practice with sound-by-sound feedback and your own family's words. The first speech check takes 2 minutes.
Take the free speech checkFrequently asked questions
Can someone have aphasia and apraxia at the same time?
Yes, very commonly — they are neighbors in the brain. Many stroke survivors have a mix of aphasia, apraxia and dysarthria, which is why a professional evaluation matters for targeting practice.
Is aphasia a mental illness or a loss of intelligence?
Neither. Aphasia is an acquired language disorder — it affects the ability to use words, not the ability to think. Intelligence, memories and personality remain intact.
Will aphasia or apraxia go away on its own?
Some early recovery happens spontaneously as the brain heals, but lasting improvement is strongly linked to practice. Therapy plus consistent home practice gives the best odds.