I had an ent look down my throat with a scope. all was good a year and half a go. i smoke marijuana. is it possible to have advanced throat cancer.?

Yes but...: The risk from smoking a joint is perhaps comparable to one tobacco cigarette, and we are not seeing a great epidemic of throat cancer in stoners as in tobacco smokers. If you have a thickening, growth, or non-healing ulcer in your throat, get it checked. Keep an eye on your whole body like a wise person does, and visit your physician if you find anything.