More than one third of cancer deaths are related to behavioural and environmental risk factors which are modifiable or can be avoided, such as
Anyone with symptoms or body changes suspicious of having cancer should see a doctor for proper investigation and diagnosis.
Some cancers may have applicable tests provided by medical professionals for cancer screening purpose. Screening aims to detect early cancer or precancerous changes before they give rise to symptoms, so that early treatment can be offered. However,not all cancers have suitable screening test. All screening tests have limitations and are not 100% accurate. Persons considering screening should seek advice from doctors for assessment of need and obtain full information on the potential benefits and harms of having the test before making an informed decision. Persons at increased riskof cancer should consult their doctors about their screening needs.
According to WHO, between 30-50% of all cancer cases are preventable. Modifying or avoiding the modifiable risk factors can significantly reduce the chance of getting cancer. Some examples are: