What Is Dysarthria?

Dysarthria is a speech problem caused by a lack of control over muscles in the face and mouth. This problem may occur if the brain is damaged. A person who has dysarthria knows which words to use, but may not be able to make the right sounds.

A person with dysarthria may not be able to make certain sounds and may speak slowly.

Signs of Dysarthria

The signs of dysarthria vary with each person. A person with dysarthria may show some or all of the signs listed below.

A person with dysarthria may not be able to do the following:

• Make certain sounds

• Speak whole sentences clearly

• Control his or her tone of voice, volume, or breaks between words

• Realize his or her speech is hard to understand

A person with dysarthria may do the following:

• Speak certain sounds louder than others

• Sound harsh or raspy during speech

• Pause for breath in the wrong places

• Drop or slur parts of words

• Speak slowly or in a way that sounds hesitant or halting

• Speak without moving the mouth