Haematochezia
Haematochezia is the passage of bright red blood with bowel movements
- it is the passage of fresh blood per anus, usually in or with stools
- hematochezia usually has a colonic source
- very rapid upper gastrointestinal haemorrhage, often from an arterial site in a peptic ulcer, may cause hematochezia (1)
In a systematic review and meta-analysis including 81 studies and more than 24.9 million patients, nearly half of individuals with early-onset colorectal cancer (EOCRC) presented with hematochezia and abdominal pain and one-quarter presented with altered bowel habits (2)
Reference:
- Wilson ID. Hematemesis, Melena, and Hematochezia. In: Walker HK, Hall WD, Hurst JW, editors. Clinical Methods: The History, Physical, and Laboratory Examinations. 3rd edition. Boston: Butterworths; 1990. Chapter 85. Available from: https://www.ncbi.nlm.nih.gov/books/NBK411/
- Demb J, Kolb JM, Dounel J, et al. Red Flag Signs and Symptoms for Patients With Early-Onset Colorectal Cancer: A Systematic Review and Meta-Analysis. JAMA Netw Open. 2024;7(5):e2413157. doi:10.1001/jamanetworkopen.2024.13157.
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