This is Dr. David
coughing up blood is serious
it can be from a lung infection or from dried mucus or could be from too much coumadin in your system or a very rare chance for a lung cancer.
you should go to the ER and see a doctor and get a chest CT scan and see a pulmonlogist
you may need a bronchoscopy scope procedure to look into your lungs to see where this blood is coming from
do you smoke or have smoked in the past?
bring a blood clot you have coughed up in a paper or glass cup and bring it to the hospital to show the doctors.
let me know if you have other questions.
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