Background: Children with adenoids that have grown too large often have difficulty breathing or get infections among upper respiratory tract because their airways are blocked. In most cases, adenoidectomy can reduce clinical symptoms and boost quality of life. Objectives: This study aimed to determine if there are any factors that can influence the usual procedure of adenoidectomy and its ability to remove all adenoid tissue. Subjects and Methods: Intra-operative variables for assessing demographic and anatomical characteristics, such as age, sex, weight, height, BMI, and soft palate length were observed in a retrospective analysis to determine their impact on adenoidectomy success. Every child had a standard trans-oral curettage adenoidectomy completed under endoscopic control, and if there were any adenoid remnants, a revision adenoidectomy was done at the same time. The total number of patients included was 208. Results: In 43.7% of patients (91/208), complete adenoidectomy was challenging since traditional surgery could not access the most important parts of the nasopharynx. The average soft palate length in this group was 2.8 centimeters, 5 millimeters longer than the sample as a whole, and 1 cm larger than the typical patient who undergoes only standard surgical procedure alone (p < 0.001). Conclusion: Intraoperatively, the soft palate length can be used as a factor for choosing which patients would undergo endoscopic control following standard adenoidectomy.