Feeling fine does not mean you are in the clear. For some people, health screening for cancer is worth doing even before any signs appear. If you have risk factors – like a close family member with cancer, certain gene changes, or a long history of smoking – early screening can catch problems much sooner.
This is especially true in Singapore, where colorectal, breast, and lung cancers are among the most common types.
Who Should Consider Health Screening for Cancer?
Most screening guidelines are written for the general public. But some people carry a higher risk than average – and they may benefit from starting earlier or testing more often.
Family History
Having a parent, sibling, or child who had cancer raises your risk. This is particularly true for:
- Colorectal cancer
- Breast and ovarian cancer
- Stomach cancer
If a close relative was diagnosed before age 50, speak to a doctor about getting checked sooner than the standard age.
Gene Changes
Some people carry inherited gene variants linked to cancer. BRCA1 and BRCA2 are the most well-known. They raise the risk of breast and ovarian cancers significantly.
Genetic testing is available in Singapore. If you know you carry one of these variants, your doctor may recommend more frequent checks or additional tests like MRI scans.
Lifestyle Factors
Long-term smoking is one of the strongest risk factors for lung cancer. Heavy alcohol use raises the risk of liver and throat cancers. Obesity is linked to several cancer types, including colorectal and endometrial.
These factors do not mean you will get cancer. But they are worth discussing with your doctor.
What Types of Screening Are Available?
Colorectal Cancer
The Health Promotion Board (HPB) in Singapore recommends that adults aged 50 and above do a faecal immunochemical test (FIT) every year. If you have a family history, your doctor may suggest starting at 40 – or doing a colonoscopy instead.
A colonoscopy is more thorough. It can find and remove small growths called polyps before they turn cancerous.
Breast Cancer
Women aged 40 to 49 are encouraged to have a mammogram every year. From 50 onwards, every two years is the standard advice. But women with BRCA mutations or a strong family history may need to start earlier and screen more often.
In some cases, MRI scans are used alongside mammograms for higher-risk women.
Cervical Cancer
The HPB recommends a Pap smear every three years for women aged 25 to 69. An HPV test every five years is another option from age 30 onwards.
Women with a suppressed immune system or certain HPV strains may need more regular checks.
Lung Cancer
Low-dose CT scans are not widely offered as a standard public health screen in Singapore. But for heavy, long-term smokers aged 50 and above, some doctors and private clinics do offer this test. The evidence for its benefit in high-risk groups is strong.
How to Find Out if You Are at Higher Risk
Start with a conversation with your GP. They can review your family history, lifestyle, and any genetic results. From there, they can refer you to a specialist or recommend a screening plan that fits your situation.
Singapore’s Screen for Life programme subsidises several common cancer screens at polyclinics for eligible residents. Private hospitals and cancer centres also offer more detailed risk assessments if you want a deeper look.
Do not wait for something to feel wrong before you ask. That is the whole point.
What Happens After Screening?
Most results come back normal. That is reassuring, but it does not mean you never need to test again. Follow the schedule your doctor recommends.
If a result is abnormal, it does not always mean cancer. Many findings turn out to be benign after further tests. But catching something early – even if it needs treatment – usually means more options and better outcomes.
Take Action Before Symptoms Appear
Screening when you feel well can seem unnecessary. But for people with real risk factors, it is one of the most practical things you can do for your health. Talk to your doctor, know your family history, and do not put off a test that could make a real difference.
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