Q9. Does marijuana cause cancer?

A9. Some studies point to a link between marijuana and head or neck cancer but this is unproven.

There is a possible risk of cancer if marijuana is combined with tobacco and smoked as this contains chemicals, toxins and substances known as carcinogens. These carcinogens increase the risk of cancer.

But it is difficult to ascertain if lung cancer is caused by smoking marijuana, tobacco only or marijuana only.

There may be other factors to consider.

Smoking can cause cancer but more research is needed to see if there is a link between this and marijuana.

Find out more in our marijuana and cancer section.

FAQS Index : Marijuana FAQ

Marijuana FAQs

1. Q1. Are marijuana and cannabis the same drug?
2. Q2. Is there more than one type of marijuana?
3. Q3. Why is marijuana popular?
4. Q4. Can you become addicted to marijuana?
5. Q5. What are the physical effects of marijuana?
6. Q6. What are the psychological effects of marijuana?
7. Q7. What does marijuana look like?
8. Q8. Does marijuana cause psychosis?
9. Q9. Does marijuana cause cancer?

10. Q10. What is 'medical marijuana?'
11. Q11. Is it illegal to possess marijuana?
12. Q12. What are 'the munchies?'
13. Q13. How is marijuana used?
14. Q14. Can you treat marijuana addiction?
15. Q15. Does using marijuana mean that you will use other drugs?