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Nosebleeds, tuberculosis, cystic fibrosis and bronchitis are some causes of blood in phlegm. Other causes include laryngitis, dehydration, aspiration pneumonia and trauma, according to Healthline.


Prolonged coughing, bronchitis or other chest infections, and bronchiectasis can cause blood in phlegm, according to WebMD. Additional causes include tuberculosis, lung cancer and other cancers of the respiratory system.


The common cold and sinus infections are the two most likely causes of excessive phlegm, notes WebMD. A healthy body makes 1 to 1.5 liters of phlegm per day, and the majority of it trickles down the throat unnoticed. Excessive phlegm causes breathing difficulty, and the body demands its removal.


Phlegm often occurs due to an infection of the lungs or sinuses, such as strep throat, the flu, sinusitis or the common cold, according to Healthgrades. Allergies, inflammation, tonsillitis, reactions to some medications, exposure to secondhand smoke, trauma, asthma, gastric reflux, bronchitis or la


Phlegm is a substance similar to mucus that occurs in the lower respiratory system leading to the lungs, states Everyday Health. Unlike mucus, phlegm doesn't typically appear in the throat and sinuses unless a person coughs it up. Coughing up phlegm is usually a symptom of pneumonia or bronchitis.


The presence of excess phlegm or mucus in the throat is caused by allergic postnasal drip, colds and flus, sinus infections, and excess dryness in the air, according to WebMD. Fumes from cleaning products, environmental irritants, chemicals or smoke can also trigger phlegm to flow into the throat.


The cause of yellow phlegm can be due to different types of chest infections that include bronchitis or pneumonia, notes the National Health Service. Chest infections can occur after a bad cold and can present other symptoms besides coughing up phlegm. For example, bronchitis symptoms can include a


To remove mucus from the back of the throat, try coughing to clear it, advises Native Remedies. This helps to break up and loosen the phlegm to bring it to the surface. Juice and tea with honey also help to thin out the phlegm to make it easier to cough up.


Congestion from a stuffy nose, a respiratory virus, bronchiolitis, postnasal drip from colds or throat infections, and influenza, a common ailment in newborns, can cause phlegm in a baby's throat, according to the Children's Hospital of the King's Daughters. Babies also develop phlegm when strugglin


Controlled coughing from the lungs, lying down to drain the mucus from the lungs and lightly tapping the chest and back can all help to clear phlegm from the lungs, according to WebMD. Breathing steam and running a humidifier moisten the air and loosen mucus, says Reader's Digest Best Health.