Rationale. Currently, the literature describes about 374 cases of Marshall syndrome. According to some authors, the prevalence of Marshall syndrome is 2.3 per 10,000 children, in general, the epidemiology of PFAPA syndrome in the pediatric population is unknown.Purpose. The aim of our study is to justify surgical treatment in children with Marshall syndrome. Objectives. The objectives of this study are to give a comparative assessment of the effectiveness of tonsillectomy and adenotonzyllectomy for this syndrome and to evaluate the quality of life indicators before and after surgical treatment.Materials and methods. The study included 26 patients with Marshall syndrome, of which 18 patients underwent adenotonzyllectomy and 8 patients underwent bilateral tonsillectomy. A clinical case of a typical manifestation of Marshall syndrome is also described, and follow-up results of the effectiveness of surgical treatment for Marshall syndrome are presented. In the course of the work, an adapted questionnaire was developed to assess the quality of life of parents of children with Marshall syndrome.Results. The result of our work is the fact that in relation to the relief of PFAPA-syndrome, children of preschool and primary school age have more effective adenotonsillectomy (88.2%), while tonsillectomy was effective only in 55.6% of patients.Conclusion. A multidisciplinary approach is required to address the diagnosis and treatment of Marshall syndrome.