What can cause you to cough up a hand full of blood probably 1-2 days out the week.? Told the friend to go get it checked but he won't

Here is one list of possible causes (you may have to copy and paste it to search).
http://www.nlm.nih.gov/medlineplus/ency/article/003073.htm

All of the possible causes on the list are serious conditions, I believe but I am not a medical expert. He is just fooling himself if he ignores this symptom.

Here is one list of possible causes (you may have to copy and paste it to search).
http://www.nlm.nih.gov/medlineplus/ency/article/003073.htm

All of the possible causes on the list are serious conditions, I believe but I am not a medical expert. He is just fooling himself if he ignores this symptom.

Thank you