Gastrointestinal bleeding after kidney transplantation is a complication that can occur from immunosuppressant use. We present a case of refractory small bowel bleeding treated successfully with thalidomide after multiple failed attempts of conventional treatment. A 65-year-old male patient with diabetic nephropathy underwent living donor kidney transplantation. The surgery was uneventful, however, he developed immunosuppressant-induced melena with unstable vital signs 11 days later. There were a total of 4 bleeding episodes until the 90th postoperative day, and he received a total of 290 units of red blood cell transfusion during this period. Endoscopic clipping, transarterial embolization, and 2 surgical interventions failed to stop the bleeding. A trial of thalidomide 100 mg per day finally stopped the bleeding and the patient was discharged on the 110th postoperative day with a functioning renal graft. This case shows that thalidomide can be a safe option to treat immunosuppressant-induced refractory gastrointestinal bleeding in the setting of kidney transplantation. Additionally, this is the first case that reports the survival of a renal graft after more than 3000 mL of transfusion.
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