Sigmoid volvulus is a rare clinical condition in young individuals. It should be accurately diagnosed and treated in a rapid manner. Surgical and nonsurgical conservative methods are used for the treatment of sigmoid volvulus. Patients having no signs of perforation or peritonitis should be primarily treated by colonoscopic detorsion. A delay in the diagnosis and treatment of this condition may cause significant morbidity and mortality in an immunosuppressed patient with newly performed renal transplant and diffuse abdominal pain. This paper reports a young patient who was diagnosed with sigmoid volvulus during admission with sudden-onset abdominal pain and distension after having undergone renal transplant from a living donor 3 days previously. The patient avoided the burden of a second surgical intervention by a bedside endoscopic detorsion procedure.