Bowel Cancer Symptoms

The best way to protect yourself and your loved ones against bowel cancer is to be aware of the symptoms.


In the early stages there may be no obvious signs or symptoms to Bowel Cancer but in most cases the following will be a good indicator:


  • Blood in the stools and/or bleeding from the rectum 

  • A change in bowel habit lasting longer than 6 weeks (e.g. loose stools, diarrhoea or constipation) 

  • Stomach pain (often severe) 

  • Lumps or a mass in the abdomen 

  • Weight loss 

  • Weakness and tiredness (symptoms of anaemia).


If you are experiencing any or a number of these it is a good idea to get checked out by your Doctor immediately.

Please note:

Inflammatory bowel disease such as Crohns Disease and Ulcerative Colitis can also mimic all the symptoms of bowel cancer listed above. It is important to be checked by your Doctor to eliminate bowel cancer as a possible cause and get the correct treatment you need.


Some of the above symptoms such as

lumps or mass in the abdomen, weight loss and change in bowel habits can also be related to ovarian cancer. If your doctor has ruled out bowel cancer, please test for ovarian too. For more information about ovarian cancer click here.

Staging of Bowel Cancer


When bowel cancer is diagnosed, additional tests are performed to determine the extent of the disease, which is a process called staging.


The staging for colorectal cancer is as follows: 


Stage I (least advanced cancer) – cancer involving only the innermost layers of the colon or rectum wall. The likelihood of cure for stage I cancer is over 90%, emphasizing the importance of early detection of the cancer.


Stage II – cancer exhibiting greater growth and extension of tumour through the wall of the colon or rectum into adjacent structures. 


Stage III – cancer involving spread of the cancer to local lymph nodes (metastasis). 

Feature Articles from our Bowel Blog

Eating more fruit helps reduce pouchitis

October 31, 2019

WANTED Runners: Inflatable Fun Run

October 22, 2019

Please reload

Stage IV (most advanced cancer) – cancer having spread to distant organs, usually the liver and lungs, or lymph nodes far from the original tumour. 


Learn more about Diagnosing Bowel Cancer.


Learn more about Bowel Cancer Treatments.


Learn more about the causes of Bowel Cancer.

CC number:


  • Facebook App Icon
  • LinkedIn App Icon