People are often concerned that as a laryngectomee you are somehow different in how you deal with your respiratory tract. Removing your larynx and diverting your breathing through your stoma has removed the filtration and humidification provided by breathing through your nose, mouth and throat. That means you are breathing in, through your stoma, air that is drier and has more particulate matter. All of this dirty, dry, air can make you susceptible to lower respiratory tract problems. We have talked at considerable length about proper stoma hygiene to improve the filtration and humidification of your inspired air.
Prevention is the absolute best form of staying in good shape.
Humidify, irrigate, drink water, wear a stoma cover, spend some time carefully cleaning the area around and just inside your stoma and have clean hands when touching your stoma. Stay moist, use good sense and good hygiene. Normal nose breathers don't have that luxury. A cough which is productive of blood may indicate anything from bronchitis to pneumonia to lung cancer. This needs to be looked into.