Marijuana and cancer
I am wondering if any cases of lung cancer (or other cancer) can result from smoking marijuana?
Barbara Campling, MD, Medical Oncologist, responds:
Yes, there is evidence that marijuana smoking can cause cancer, in particular lung cancer. Smoke from burning marijuana contains many of the same carcinogens found in tobacco smoke, some in even higher concentrations. It has been difficult to sort out the contribution of marijuana to lung cancer, since many marijuana smokers also use tobacco. Furthermore, it may be difficult to obtain accurate information about the use of illicit drugs. Here are a number of studies that you may want to look up:
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