What does it mean if you have a sore throat an cough up a little bit of blood

Hemoptysis....: The most likely reason to cough blood, called hemoptysis, is bronchitis. But this symptom always requires an evaluation by a doctor because it could be due to malignancy. So, if you cough up blood, see your doctor asap. If you are short of breath or coughing up a lot of blood, go to the er. If you smoke, you need to quit to decrease airway inflammation.