Objectives: The objectives of the research were to determine whether there is a difference in the frequency of symptoms and degrees of hypertrophy of adenoid vegetations between age groups and genders. In addition, we examined whether the degree of hypertrophy of adenoid vegetations corresponds to the severity of symptoms and whether there is a difference between age groups and sexes in the association of symptoms of hypertrophy of adenoid vegetations with the findings of fiberendoscopy of the nasopharynx. Finally, we examined what are the most common symptoms of hypertrophy of adenoid vegetations and whether they differ in relation to age groups and genders. Materials and methods: The research materials are specialist findings as well as the findings of fiberendoscopy of the nasopharynx from the register of the ENT children's clinic. The findings include data on the age and gender of the subjects, as well as anamnestic and heteroanamnetic data on symptoms of adenoid hypertrophy. Fiberendoscopic examination of the nasopharynx determined the degree of adenoid vegetation hypertrophy according to Cassan. Specialist findings include otoscopic, rhinoscopic and oropharyngoscopic status. Results: Statistical processing revealed a more frequent occurrence of otitis with effusion in girls than in the group of boys (p=0.01). On the other hand, complete nasal obstruction, partial nasal obstruction, night snoring, apnea and otitis with effusion occur more often in the first age group (p=0.00), while headache is more common in the second group (p=0.00). By analyzing grades, it was proven that the first group has an average higher grade than the second age group (p=0.00) and that boys have an average statistically significantly lower grade than girls (p=0.01). We proved that the degree of hypertrophy corresponds to the severity of symptoms for all symptoms except mouth breathing (p=0.30) and cough (p=0.20). We proved a statistical association of symptoms with a higher degree in male subjects for all symptoms except mouth breathing, rhinorrhea and cough. On the other hand, in female subjects, we proved the association of symptoms with a higher grade in all symptoms except ear inflammation with effusion and mouth breathing. In the first age group, we demonstrated a statistically significant association of the occurrence of symptoms with the height of the degree in the symptoms of complete nasal obstruction, partial nasal obstruction, night snoring, nasal speech, apnea, frequent ear infections and cough. In the second age group, we proved a statistically significant association of symptoms with grade height for the symptoms of night snoring, nasal speech and 48 frequent ear infections. Finally, rhinorrhea, nocturnal snoring, partial nasal obstruction and nasal speech are the most common symptoms, equally represented in boys and girls, while nocturnal snoring (p=0.00) and partial nasal obstruction (p=0.00) appear more often in the first age group. group. Conclusion: Fiberendoscopy of the nasopharynx is a very reliable method that provides a strong correlation between symptoms and degrees of HA, which correspond to the severity of the symptoms, so that higher degrees are associated with more severe symptoms. In children of the younger age group, we find higher degrees of HA and a significant correlation of the occurrence of almost all symptoms with the height of the degree.