Bowel cancer is the second biggest cancer killer in New Zealand (lung cancer holds first place), but it doesn’t need to be as it is one of the cancers that, if caught early, can usually be treated successfully.
New Zealand has one of the highest bowel cancer rates in the world with over 1200 people dying every year of the disease. Scientists are still unsure why this is – it has been raised that our love of red meat, processed foods and foods that are high in animal fat could be contributors. There are other risk factors to developing bowel cancer such as drinking alcohol, smoking, being overweight, a diet low in fruit and vegetables, inflammatory bowel disease, and lack of exercise as well as genetic factors.
While bowel cancer is more common in people over the age of 60 years, it can be found in people much younger. It is very important if you have any of the following symptoms to get them checked by your doctor:
Certain people have an increased risk of developing bowel cancer. It is more common in people over the age of 60, and in men rather than women. People with a strong family history of bowel cancer or known or suspected genetic bowel cancer syndrome are at greater risk, as are people who have an inflammatory bowel disease such as ulcerative colitis.
Like with any cancer prevention, healthy lifestyle choices can make a difference to your chance of developing this disease. Eating a diet that is rich in vegetables, fruit, legumes and whole-food, and limiting red and processed meats is important. Don’t smoke, limit alcohol intake, take part in regular exercise and choose foods that are low in salt, sugar and saturated fats. Drink lots of water, choose low-fat options for yoghurt, milk and cheese, and choose lean cuts of red meat, along with poultry and fish to base healthy meals around.
Sometimes there are no warning signs for bowel cancer and regular bowel screening is a way to find and treat bowel cancer when it is in its early stages. New Zealand has started to roll out a free national bowel screening programme (NBSP) for eligible Kiwis aged 60 to 74, for early detection of bowel cancer. The screening is offered every two years. People are sent a testing kit that they can undertake at home, then send away to be tested. The kit detects traces of blood in your bowel motions, which can indicate that you have bowel polyps (pre-cancerous growths) or bowel cancer. You are notified of your test results and if the test is positive you will need to undergo extra screening to investigate why. This procedure is called a colonoscopy, where a tiny camera on the end of a long tube is inserted into your bowel. The camera is able to find polyps or cancer, and even remove the polyps during the procedure.
If you are found to have bowel cancer, you will be referred to a specialist. Surgery to remove the cancer is usually the first step of treatment and this may be followed by chemotherapy or radiotherapy if needed. This treatment for bowel cancer is free through the public health system.
It is very important to remember that there is a much greater chance of successful treatment if bowel cancer is detected in the early stages. Follow up early on any health niggles and if you are within the eligible age group and your District Health Board is part of the NBSP, make sure that you do your bowel screening test.
This blog provides general information and discussion about medicine, health and related subjects. The information contained in the blog and in any linked materials, are not intended nor implied to be a substitute for professional medical advice.
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