Objective: to investigate the functional state of the pelvic floor muscles in patients with rectocele. Subject and methods. In January 2015 to July 2016, the investigation enrolled 108 patients with rectocele, who had not undergone surgery for its correction, with complaints of obstructive defecation. The mean age was 49.5±14.5 years. 26 (24.1%) patients complained of incontinence of various components of the intestinal contents. In all the examinees, the clinical manifestations corresponded to the signs of functional constipation according to the Rome III criteria. All the patients underwent comprehensive examination, including physical examination, defecography, and functional study of the obturator apparatus of the rectum. The patients filled out the questionnaires: the colonic evacuation dysfunction rating system and the Wexner fecal continence grading scale. All the patients underwent high-resolution anorectal manometry (HRAM) using 8-channel water-perfused catheters, and an evacuation test to evaluate evacuation function, complex sphincterometry to investigate fecal continence, and stimulation electromyography to identify pudendal neuropathy. Results. In the rectocele group, the prevalence of functional disorders of defecation (FDD) (as types I and III dyssynergia and type II inadequate propulsion) was high and accounted for 69.4%. Incontinence recorded by sphincterometry in 24.1% of the patients with rectocele and coincided with the presence of complaints. No correlation was found between the presence of incontinence and FDD. In the FDD and non-FDD groups, there were patients who had subclinical incontinence, i.e. the decreased manometric indicators of internal sphincter tone were determined in the absence of complaints. Comparison of the prevalence of pudendal neuropathy revealed no significant differences in the FDD and non-FDD groups. At the same time, comparison of the prevalence of pudendal neuropathy showed a significant difference in patients with and without anal sphincter insufficiency. Conclusion. A set of functional studies of the pelvic floor muscles in female patients with rectocele who have complaints of obstructive defecation should encompass HRAM, an evacuation test for identifying evacuation dysfunction, and sphincterometry.