Smoke from cigarettes, marijuana, or other drugs is a primary cause of cancer.
Cigarette smoking alone is responsible for more than 85% of lung cancers across Canada, and is either a direct cause or a contributing factor of cancers in the:
- Oral cavity
- Nasal cavity
- Bladder, pancreas
- Uterine cervix
- Colon and rectum
Smoking affects all parts of your body and is linked to a number of other chronic diseases.
Non-smokers can also develop cancers due to second-hand smoke.
The most important way to decrease your overall risk of cancer is to not smoke and to avoid breathing in other people’s smoke.
Quitting smoking can improve your health, no matter how much or for how long you have smoked.
For more information on smoking and quitting, see: