Johari et al Brunei International Medical Journal 2025;21:133-136 Brunei International Medical Journal Life Threatening Diverticular Bleeding in an Elderly: Not Always from Colonic Diverticula Nur Farehah JOHARI1,2, Andee Dzulkarnaen ZAKARIA1,2, Rosnelifaizur RAMELY1,2, Firdaus HAYATI3*