Pilonidal sinus disease (PSD) is a common infectious and chronic inflammatory problem in the pediatric age group with no precise incidence data. PSD is more common in the pediatric age group between the ages of 15-17 due to rush routine educational activities in this age group, such as university entrance examinations. It is essential to early back to the daily routine, which the patient and parent highly desire, after treatment in PSD. This study was performed between December 2016 and March 2020. The files of 152 pediatric patients treated for PSD were analyzed retrospectively. The study group included 96 boys (63.2%) and 56 girls (36.8%). Eighty-five patients (55.9%) underwent phenol application, 41 (27.0%) underwent surgery, and 26 (17.1%) children underwent multiple procedures. The mean age of the patients was 16.2±1.39 years. The mean follow-up time was 21.6±12.2 months, and the mean body mass index (BMI) was 25.2±4.4 kg/m2. In the phenol group, the mean age was 16.3±1.2 years, the mean follow-up time was 17.3±9.55 months, and the mean BMI was 24.6±4.31 kg/m2. In the surgical group, the mean age was 16.0±1.74 years, the follow-up time was 35.6±3.82 months, and the mean BMI was 25.6±4.66 kg/m2. The patients' demographic data were gathered age, gender, BMI, type of procedure, number of applications, follow-up, complications, recurrence rate, and postoperative complication. Phenol application has essential advantages over surgical procedures in treating PSD, such as simple application, short hospitalization, cost-effectiveness, and low complication rates. To sum up, the phenol procedure is a straightforward treatment method that reduces complication rates and provides an early return to ordinary life. Abstract Pilonidal sinus disease (PSD) is a common infectious and chronic inflammatory problem in the pediatric age group with no precise incidence data. PSD is more common in the pediatric age group between the ages of 15-17 due to rush routine educational activities in this age group, such as university entrance examinations. It is essential to early back to the daily routine, which the patient and parent highly desire, after treatment in PSD. This study was performed between December 2016 and March 2020. The files of 152 pediatric patients treated for PSD were analyzed retrospectively. The study group included 96 boys (63.2%) and 56 girls (36.8%). Eighty-five patients (55.9%) underwent phenol application, 41 (27.0%) underwent surgery, and 26 (17.1%) children underwent multiple procedures. The mean age of the patients was 16.2±1.39 years. The mean follow-up time was 21.6±12.2 months, and the mean body mass index (BMI) was 25.2±4.4 kg/m2. In the phenol group, the mean age was 16.3±1.2 years, the mean follow-up time was 17.3±9.55 months, and the mean BMI was 24.6±4.31 kg/m2. In the surgical group, the mean age was 16.0±1.74 years, the follow-up time was 35.6±3.82 months, and the mean BMI was 25.6±4.66 kg/m2. The patients' demographic data were gathered age, gender, BMI, type of procedure, number of applications, follow-up, complications, recurrence rate, and postoperative complication. Phenol application has essential advantages over surgical procedures in treating PSD, such as simple application, short hospitalization, cost-effectiveness, and low complication rates. To sum up, the phenol procedure is a straightforward treatment method that reduces complication rates and provides an early return to ordinary life. Özet Pilonidal sinüs hastalığı (PSH), pediatrik yaş grubunda sık görülen, kesin insidans verisi olmayan enfeksiyöz ve kronik inflamatuar bir problemdir. PSH, 15-17 yaşarasındaki pediatrik yaşgrubunda, bu yaşgrubundaki üniversite giriş sınavları gibi rutin eğitim faaliyetlerinin yoğun olması nedeniyle daha sık görülür. PSH'de tedaviden sonra günlük rutine erken dönmekönemlidir, ki bu hasta ve ebeveyninçok istediği birdurumdur.Bu çalışma Aralık 2016 ile Mart 2020 tarihleri arasında gerçekleştirilmiştir. PSH ile tedavi edilen 152 pediatrik hastanın dosyalarıretrospektif olarak incelendi.Çalışma grubuna 96 erkek (%63.2) ve 56 kız (%36.8) dahil edildi. Seksen beşhastaya (%55.9) fenol uygulaması, 41 (%27.0) hastaya ve 26 (%17.1)çocuğa birden fazla işlem uygulandı. Hastaların yaşortalaması16.2±1.39 yıldı. Ortalama takip süresi 21.6±12.2 ay, ortalama vücut kitle indeksi (VKİ) 25.2±4.4 kg/m2idi. Fenol grubunda yaşortalaması16.3±1.2 yıl, ortalama takip süresi 17.3±9.55 ay ve ortalama VKİ24.6±4.31 kg/m2idi. Cerrahi grupta yaşortalaması16.0±1.74 yıl, takip süresi 35.6±3.82 ay ve ortalama VKİ25.6±4.66 kg/m2idi. Hastaların demografik verileri yaş, cinsiyet, VKİ, işlem tipi, uygulama sayısı, takip, komplikasyonlar, nüks oranı ve postoperatif komplikasyon olarak toplandı. Fenol uygulaması, PSH tedavisinde cerrahi prosedürlere göre basit uygulama, kısa hastanede yatış, maliyet etkinliği ve düşük komplikasyon oranları gibi önemli avantajlara sahiptir. Özetlemek gerekirse, fenol prosedürü komplikasyon oranlarınıazaltan ve normal hayata erken dönüşsağlayan basit bir tedavi yöntemidir.