Adenoid 0.75, is the ratio of adenoid thickness to nasopharyngeal cavity width is 0.75, whether it is serious or not, mainly depends on the patient’s adenoid is physiological hypertrophy or pathological glandular hypertrophy, if it is physiological hypertrophy, there is no clinical manifestation, this situation is not serious; if the patient has nasal congestion, open-mouth breathing, etc., it is pathological adenoid hypertrophy, which is a more serious situation. 1. Physiological adenoid hypertrophy: adenoids at the age of 2 to 6 years, the growth of the adenoids, belonging to the physiological hypertrophy, after 10 years of age, adenoids gradually atrophy, during the period of no obvious symptoms, does not affect the normal physiological function, so this case of adenoid hypertrophy is not serious, and does not need to carry out medical intervention. 2. Pathological adenoid hypertrophy: Pathological adenoid hypertrophy can cause nasal congestion, runny nose and open-mouth breathing, or can lead to secretory otitis media and maxillofacial deformities and other complications, which is a more serious condition and requires standardized treatment for the causes and symptoms. Patients usually have discomfort, need to go to the hospital in a timely manner, do not be careless, so as not to delay treatment.