lung cancer – this is more likely if you're over 40 and smoke.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.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. bronchiectasis – this is more likely if you're also wheezy or short of breath. a chest infection – this is more likely if your sputum is discoloured or contains pus, you have a fever, or you have a tight feeling in your chest.The most common reasons for coughing up blood are: This page can give you a better idea of what the cause may be, but don't use it to diagnose yourself. For example, you may be referred to a specialist who may decide to arrange a test called a bronchoscopy (where the main air passages of your lungs are examined using a tube with a camera at one end). In some cases, further tests may be required to find out where the blood is coming from. Other tests, such as blood tests, may also be needed. You may be asked for a sample of your sputum so it can be checked for infection. Your GP may decide to refer you to a specialist at your local hospital for a chest X-ray or a more detailed scan, such as a computerised tomography (CT) scan. Your GP will check if you might have a serious medical condition that needs to be investigated and treated.Ĭall NHS 111 or your local out of hours service if you can't speak to your GP.Ĭall 999 for an ambulance or go to your nearest accident and emergency (A&E) department immediately if you're coughing up a lot of blood or are struggling to breathe. What to do if you cough up bloodĬall your GP surgery as soon as possible if you cough up blood, even if it's just a few spots or specks. This is a more serious problem and you should go to hospital straight away. If the blood is dark and contains bits of food or what look like coffee grounds, it may be coming from your digestive system. The blood is usually from your lungs and is often the result of prolonged coughing or a chest infection. You may cough up small amounts of bright red blood, or frothy blood-streaked sputum (phlegm). The medical term for coughing up blood is haemoptysis. It's more a cause for concern in older people, particularly those who smoke. Coughing up blood can be alarming, but isn't usually a sign of a serious problem if you're young and otherwise healthy.
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