... this past summer in the morning when I cleared my throat 2x I had very tiny streaks of blood.. ... (1 replies)

... If the pulmonary doctor wasn't too concerned chances are it wasn't anything terribly serious. Most serious things that cause blood streaking in the mucus are seen on a chest x-ray (like cancer) so you don't really have to worry about this. It's likely that you cough very hard and rupture a capillary, and this capillary bleeds a tiny amount. However, if you start noticing a... (1 replies)