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pulmonary oedema (fluid in the lungs) – your sputum will be pink and frothy, and this usually occurs in people with pre-existing heart problems.pulmonary embolism (a blood clot in the lungs) – this usually causes sudden shortness of breath and chest pain.bronchiectasis – this is more likely if you're also wheezy or short of breath.Less commonly, coughing up blood may be the result of: Sometimes a severe nosebleed or bleeding from the mouth or throat can cause blood to come out in your saliva when you cough. tuberculosis (TB) – a severe lung infection associated with fever and sweating which can be treated with antibiotics.bronchitis - an infection of the main airways of the lungs (bronchi), causing them to become irritated and inflamed (it can be caused by either a virus or bacteria, although viral bronchitis is much more common).pneumonia - a swelling (inflammation) of the tissue in one or both of your lungs usually caused by an infection with a germ (bacterium or virus).Where a specific cause is found, the most common causes include: The most common reason for coughing up blood is a chest infection. The information below can give you a better idea of what may be the reason for coughing up of blood.ĭon't use it to diagnose yourself - always leave that to a doctor. This is where the main air passages of your lungs are examined using a tube with a camera at one end. For example, you may have a test called a bronchoscopy. In some cases, further tests may be required to find out where the blood is coming from.
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It's more likely to be a cause for concern the older you are, particularly if you smoke. Coughing up blood can be alarming, but isn't necessarily a sign of a serious problem.