I have been spitting up Black stuff for the past 5-6 years im 21 male, I smoke alot of marijuana for a back injury.I do not like pills. Is this black stuff blood? is this black stuff resin from the marijuana, Do i have some type of lung cancer, I feel like a baby about this but want to make sure im not going to die. thank you for takeing the time to read and help me to my answer.
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What Causes Chronic Dark Phlegm?
Hello and Welcome to ‘Ask A Doctor’ service. I have reviewed your query and here is my advice. This black stuff might be from the marijuana smoke. Discuss with your doctor about it. Hope I have answered your query. Let me know if I can assist you further. Regards, Dr. Jnikolla