Transanal irrigation in the management of chronic constipation and faecal incontinence: clinical outcomes and safety considerations

Chronic constipation and faecal incontinence are common gastrointestinal disorders that can significantly impair quality of life and daily functioning. Although many patients respond to first-line management strategies, such as dietary modification, pharmacological therapy and pelvic floor rehabilitation, a proportion continue to experience persistent bowel dysfunction. In these individuals, additional therapeutic approaches may be required. Transanal irrigation has emerged as a minimally invasive technique designed to facilitate evacuation of stool from the distal colon through retrograde instillation of water into the rectum. This clinical review examines the physiological rationale for transanal irrigation, its clinical indications, patient selection considerations and practical aspects of the technique. Evidence from observational cohorts and prospective studies suggests that transanal irrigation may improve bowel symptoms and quality of life in selected patients with refractory constipation or faecal incontinence. Reported adverse events are generally mild and transient, with serious complications such as bowel perforation occurring rarely when appropriate training and clinical supervision are provided. However, treatment adherence varies, and successful implementation requires structured patient education and ongoing follow up. Therefore, transanal irrigation therefore represents an important therapeutic option within the broader bowelmanagement pathway for patients with persistent bowel dysfunction who have not responded adequately to conventional therapies.