Solitary ulcer of the rectum or better the syndrome of solitary rectal ulcer syndrome (SRUS) is a rare benign pathology with a prevalence estimated at 1/100,000 inhabitants. It mainly affects young patients with a maximum incidence between the third and fourth decade of life, but can be seen at any age. It remains exceptional in the elderly with only few sporadic cases in the world literature. We report an original case of SRUS occurring in a 70-year-old man with no particular pathological history, who was explored for rectal bleeding with anal pain that had been evolving for two years. As rare as it is, this entity deserves to be known by any healthcare professional caring for elderly subjects because can sometimes progress unfavorably with severe and even fatal complications such as massive bleeding and perforation.