Suddenly struggling to speak, understand words, read, or write can be frightening. In some cases, these symptoms may be caused by aphasia, a language disorder that occurs when areas of the brain responsible for communication are affected.
Because sudden aphasia can be a sign of a stroke or other serious neurological problem, new language difficulties should never be ignored.
What Is Aphasia?
Aphasia is a disorder that affects a person’s ability to communicate.
It can interfere with:
- Speaking
- Understanding speech
- Reading
- Writing
- Finding the right words
- Forming complete sentences
Aphasia does not necessarily mean a person has lost intelligence. The difficulty is usually with processing or producing language.
Quick Answer: What Causes Aphasia?
Aphasia happens when language-related areas of the brain are damaged or disrupted.
Common causes include:
- Stroke
- Brain injury
- Brain tumor
- Infection affecting the brain
- Certain neurological diseases
- Progressive brain disorders
A stroke is one of the most common causes of sudden aphasia.
What Does Aphasia Look Like?
A person with aphasia may know what they want to say but have difficulty expressing it.
Possible signs include:
- Using the wrong word
- Speaking in short or incomplete sentences
- Struggling to name familiar objects
- Repeating words or phrases
- Speaking fluently but using words that do not make sense
- Difficulty understanding questions
- Trouble reading or writing
- Becoming frustrated while trying to communicate
The exact symptoms depend on which area of the brain is affected.
What Are the Main Types of Aphasia?
Expressive Aphasia
A person may understand what others are saying but have difficulty producing speech.
They may:
- Speak in short phrases
- Pause frequently
- Struggle to find words
- Know what they want to say but be unable to say it clearly
Receptive Aphasia
A person may speak easily but have difficulty understanding language.
Their speech may sound fluent while containing incorrect or unrelated words.
Global Aphasia
Global aphasia is a more severe form that affects both understanding and producing language.
It often occurs when a larger area of the brain is affected.
Can Aphasia Be a Sign of Stroke?
Yes.
Sudden difficulty speaking or understanding speech is an important warning sign of stroke.
Call 911 immediately if language problems begin suddenly, especially with:
- Facial drooping
- Weakness or numbness on one side of the body
- Difficulty walking
- Severe dizziness
- Vision changes
- Confusion
- Sudden severe headache
Stroke treatment is time-sensitive. Do not wait to see whether the symptoms improve.
Can Aphasia Come and Go?
Sometimes.
Temporary language difficulty can occur during a transient ischemic attack (TIA), sometimes called a mini-stroke.
Symptoms may disappear within minutes or hours, but a TIA can be a warning sign of a future stroke and requires urgent medical evaluation.
Recurring or temporary speech problems should not be ignored.
Is Aphasia the Same as Slurred Speech?
No.
Aphasia affects language itself — choosing words, understanding speech, reading, or writing.
Dysarthria affects the muscles used for speaking, which may make speech sound:
- Slurred
- Slow
- Weak
- Difficult to understand
A person may occasionally experience both conditions depending on the neurological problem.
How Is Aphasia Diagnosed?
Evaluation usually begins with a neurological examination and a detailed description of when the symptoms started.
A healthcare professional may evaluate:
- Speech
- Understanding
- Naming objects
- Reading
- Writing
- Memory
- Strength
- Coordination
- Reflexes
If symptoms began suddenly, emergency brain imaging may be needed.
What Tests May Be Recommended?
Depending on the situation, testing may include:
CT Scan
A CT scan may be performed quickly when stroke or bleeding in the brain is suspected.
MRI
MRI provides detailed images of the brain and may help identify:
- Stroke
- Tumors
- Inflammation
- Structural abnormalities
Additional Testing
Other tests may be used to evaluate blood vessels, heart function, infection, or other possible causes.
How Is Aphasia Treated?
reatment depends on the underlying cause.
For example, stroke-related aphasia requires treatment of the stroke itself, followed by rehabilitation.
A major part of recovery may involve speech and language therapy.
Therapy may help patients improve:
- Word finding
- Sentence formation
- Understanding speech
- Reading
- Writing
- Alternative ways of communicating
Recovery varies from person to person.
Can Someone Recover From Aphasia?
es, many people improve with treatment and rehabilitation.
Recovery depends on factors such as:
- The cause of the aphasia
- Location and size of the brain injury
- Severity of symptoms
- Overall health
- How quickly treatment begins
- Participation in rehabilitation
Some people recover significantly, while others may continue to experience language difficulties.
When Should You See a Neurologist?
A neurological evaluation may be appropriate for:
- New difficulty finding words
- Repeated episodes of speech difficulty
- Trouble understanding conversations
- Language problems after a stroke or head injury
- Progressive changes in speaking, reading, or writing
- Other neurological symptoms occurring with communication problems
Sudden symptoms should be treated as an emergency rather than waiting for a routine appointment.
Frequently Asked Questions
Yes. Sudden aphasia is commonly associated with stroke or TIA and requires immediate medical attention.
Aphasia primarily affects language, although other neurological problems may also affect memory depending on which parts of the brain are involved.
Some people can understand speech well but have difficulty responding. Others may have difficulty understanding language as well.
Not always. Some people improve considerably with treatment and speech therapy, while others may continue to experience long-term symptoms.
Certain migraines can cause temporary neurological symptoms, including language difficulty. However, new sudden speech problems should be evaluated urgently because stroke can cause similar symptoms.
