“…It is a widely held view that patients with bowel cancer present with non‐specific symptoms1, 2. As patients with colorectal cancer have three primary symptoms (rectal bleeding, change in bowel habit and abdominal pain1–4) that are common in patients with benign disease5–11, single symptoms have low diagnostic value for cancer. However, it is recognized that many patients with cancer present with more than one symptom3, 4: over 40 per cent also have either a palpable abdominal or rectal mass3, 4, around 30 per cent have iron deficiency anaemia12–14, and 10–20 per cent present as an emergency with intestinal obstruction15, 16.…”