When to get medical advice
See your GP if you have 1 or more of the symptoms of bowel cancer, and they persist for more than 4 weeks.
Read more about diagnosing bowel cancer.
In some cases, bowel cancer can stop digestive waste passing through the bowel. This is known as a bowel obstruction.
Symptoms of a bowel obstruction can include:
- intermittent, and occasionally severe, abdominal pain – this is always bought on by eating
- unintentional weight loss – with persistent abdominal pain
- constant swelling of the tummy – with abdominal pain
- being sick – with constant abdominal swelling
A bowel obstruction is a medical emergency. If you suspect your bowel is obstructed go to the accident and emergency (A&E) department of your nearest hospital.