MSRA-0301

MSRA-0301

A 32-year-old male presents to his GP with a complaint of rectal bleeding and black stool. He reports experiencing this issue more than six times in the past four months. The patient denies any other symptoms such as weight loss, abdominal pain, or changes in bowel habits. During the examination, no masses or apparent causes of bleeding are found in his abdomen or rectum. However, the GP notices some red spots on the patient’s lips and tongue. When questioned about them, the patient dismisses them as insignificant and claims that everyone in his family has them. What is the most probable reason for the bleeding?