Children with large incisors do not necessarily have adenoid facies, but may be due to normal development. Diagnosis of adenoid facies requires examination of adenoid hypertrophy. Adenoid facies is caused by adenoid hypertrophy, the hypertrophied adenoids block the nasopharynx causing poor ventilation, resulting in long-term open-mouth breathing affecting facial bone development. This results in an adenoid face characterized by an elongated maxilla, protruding upper incisors, and thick lips. If the child only has large incisors, it may be a normal physiological phenomenon during development. If accompanied by open-mouth breathing, nasal congestion, dizziness and other symptoms, you need to go to the hospital for examination, and if there is adenoid hypertrophy, it is considered to be adenoid facies. It is recommended to seek timely medical treatment and diagnosis by a professional doctor.