is stuttering hereditary

Hi Anon,

Stuttering is a speech disorder in which the flow of speech is interrupted by:

Repetition or prolongation of sounds, words, or syllables
An inability to begin a word
In an attempt to speak, the person who is stuttering may:

Frequently blink the eyes
Have abnormal facial or upper body movements
Causes
The cause of stuttering is not completely understood. Some experts have suggested that stuttering may occur when:

A child's ability to speak does not match his verbal demands
Psychological factors in a child’s life (eg, mental illness, extreme stress)
Problems occur in the connections between muscles, nerves, and areas of the brain that control speech
Problems in the part of the brain that controls the timing of speech muscle activation

Risk Factors
These factors increase your chance of developing stuttering. Tell your doctor if you have any of these risk factors:

Family history of stuttering (There is increasing evidence to support a genetic link in stuttering.)
Sex: male
Age: between 2-6 years of age
Symptoms
Symptoms may include:

Repetition of sounds, syllables, words, or phrases
Prolongation of sounds within words
Between-word pauses and lack of sound
"Spurting" speech
Accompanying behaviors, such as:
Blinking
Facial ticks
Lip tremors
Tense muscles of the mouth, jaw, or neck
Worsening symptoms when speaking in public
Improvement in symptoms when speaking in private
Diagnosis
The doctor will ask about your symptoms and medical history. She will also do a physical exam. Diagnosis may be based on:

Stuttering history
Circumstances under which stuttering occurs
Speech and language capabilities
Evaluation of hearing and motor skills, including a pediatric and neurological examination
Further testing and treatment by a speech language pathologist (someone who specializes in communication disorders)
Treatment
Treatment can improve stuttering. The main goal is to get and maintain a feeling of control over speech fluency. Recovery rate is about 80%, more in girls than in boys. The doctor or speech therapist can:

Evaluate the stuttering pattern
Assess what strategies may work best
Treatment may include:

Drug therapy—There is little evidence to support the use of drugs to improve speech fluency.
Behavioral therapy—This focuses on behavior modifications that can be made to improve fluency.
Speech therapy—A primary goal of this type of therapy is to slow the rate of speech.

Prevention
There are no guidelines for preventing stuttering. But, early recognition and treatment may minimize or prevent a life-long problem.

Hope this helps, If you'd like more information on Stuttering, please visit: https://www.empowher.com/media/reference/stuttering

-Rosa