Stuttering, or stammering. Correcting stuttering requires identifying the cause of stuttering and treating it accordingly. Common causes of stuttering include genetic factors, mental and psychological factors, and congenital oral defects. It is recommended to go to a specialized hospital for consultation to clarify the cause of stuttering. 1. Genetic factors: The patient’s family members have symptoms of stuttering. It is possible that it will be inherited to cause the patient to stutter. In this case, the patient can relieve or reduce the symptoms of stuttering through speech exercise. 2. Psychological factors: When the patient is in a state of nervousness, fear or low self-esteem, he or she may stutter. It is usually related to the environment and experience of the patient. This condition can be treated psychologically to help eliminate emotional barriers. 3. Congenital oral defects: such as short tongue, short tongue tendon, etc., may cause the patient to speak poorly and stutter. This condition can be treated with surgery to lengthen the tongue tie. There are many reasons for stuttering. If you want to correct stuttering, you have to identify the cause of the disease and treat the cause.