Has there ever been any case of lung cancer from weed smoking?

The link between smoking tobacco and lung cancer is undeniable, but does smoking marijuana cause lung cancer too? The short answer -- maybe. Let's take a look at the long answer. read more

Marijuana smoking does cause inflammation and cell damage, and it has been associated with pre-cancerous changes in lung tissue. Marijuana has been shown to cause immune system dysfunction, which could theoretically predispose individuals to cancer. read more

More importantly, however, smoking marijuana has been historically illegal, and therefore there has been no way to do an actual study of its effects through regular, prolonged use. One thing is certain, people who smoke marijuana still get cancer at the same rates as people who don’t, overall. read more

While two-pack-a-day or more cigarette smokers were found to have a 20-fold increase in lung cancer risk, no elevation in risk was seen for even the very heaviest marijuana smokers. The more tobacco a person smoked, the greater their risk of developing lung cancer and other cancers of the head and neck. read more