- Home
- About cancer
- Types of cancer
- Bowel cancer
Bowel cancer
If bowel cancer is found and treated early, you have a good chance of getting better.
Click on the headings below to learn more.

- It develops from a cancerous growth in any part of the large bowel.
- It is sometimes known as colorectal cancer.
- It may develop from growths on the bowel wall, called polyps. These are usually harmless, but may become cancerous.
- The large bowel is made up of several parts:
- caecum – small pouch at the start of the large bowel
- colon – divided into four parts (ascending colon, transverse colon, descending colon and sigmoid colon)
- rectum – this is the last part; it stores poo until it leaves the body
- anus
The bowel
You can have bowel cancer without noticing anything is wrong.
Warning signs may include:
- blood or mucus in your poo
- diarrhoea or constipation for no reason
- tummy problems, i.e. feeling bloated, pain or cramps
- feeling tired all the time.
If you have any of these problems, see your doctor. You will have some tests to work out if you have bowel cancer.
The test results will tell the doctor what type of bowel cancer you have, and if the cancer has spread (the stage). This information helps the doctors decide what treatment you need.
Staging
- Stage 1 – the cancer is found only in the bowel wall
- Stage 2 – the cancer has spread to the outer surface of the bowel wall
- Stage 3 – the cancer has spread to the lymph nodes near the bowel
- Stage 4 – the cancer has spread beyond the lymph nodes to other areas of the body, such as the liver or lungs.
There are different types of treatment for bowel cancer. You may have one or more of these treatments:
- Surgery – removes the part of the bowel with cancer and joins the two ends together
- Radiation therapy – may be used before surgery to shrink the tumour, and some people may have it after surgery to kill cancer cells that remain in the area
Some people have radiation therapy to relieve pain and other problems caused by the cancer.
Treatment for bowel cancer can cause problems. An opening of the bowel onto the tummy is sometimes made during the surgery. This is called a stoma.
About 1 out of 8 people with bowel cancer need a permanent colostomy – a goona bag. You will learn how to take care of this.
It is normal for you and your family to have lots of different feelings right now. Talking with your doctor, nurse or health care professional will help answer any questions you may have.
Depending on where you live, you might need to travel for treatment. You can get help to pay for travel and accommodation.