Definitions:

1. A medical term that refers to the passage of fresh, bright, red blood through the anus, often mixed with or coating stool. NOUN
   • The patient reported haematochezia, prompting an urgent colonoscopy to investigate the source of bleeding.
2. Passage of stools containing blood. NOUN
   • The patient's haematochezia was accompanied by severe abdominal cramps and vomiting.

Synonyms:

• blood in the stool
• hematochezia