I am 22 years old, and about a year 1/2 ago I started coughing up phlegm with small black/brown flecks in it. I have read around a bit, and cant find much (except for here on the lung cancer forum on the only post), and also on wikipedia a bit. I think it may be because I smoke, but not very much, maybe like 3-6 per day for about the last 5 years. Ive seen other people post about it on other forums, but no replies.
Any information is much appreciated :)