Normal defecation involves a coordinated response to rectal wall distension, leading to the urge to defecate and synchronized activation of abdominal pressure, pelvic floor relaxation, and anal sphincter relaxation. In contrast, functional defecation disorders are characterized by difficulty evacuating stool despite no morphological abnormalities, and one major cause is dyssynergic defecationDyssynergic defecation. This condition results from impaired coordination between intraabdominal pressure, pelvic floor muscles, and anal sphincters during defecation. Symptoms include excessive straining, incomplete evacuation, and a sense of anorectal blockage. Initial management for the patients who have these complications should include dietary modifications, bowel habit improvement, and appropriate laxative use. Patients with persistent symptoms after using initial management may benefit from referral to specialized centers for advanced diagnostics and therapy. Diagnosis requires specialized tests such as anorectal manometry, high-resolution manometry, surface electromyography, balloon expulsion test, and defecography. First-line treatment is a biofeedback therapy, which retrains muscle coordination and improves rectal sensation. Studies report a 70–80% success rate, with benefits lasting over 2 years.