https://www.mucinex.com/blogs/cold-flu-symptoms/when-should-i-be-worried-about-coughing-up-green-mucus

Coughing up green mucus may be a sign you need medical treatment if your ... Sputum Colour and Bacteria in Chronic Bronchitis Exacerbations: a Pooled ...

https://www.medicalnewstoday.com/articles/318359.php

Jul 13, 2017 ... When someone gets sick with a cold or an infection, the mucus can become ... Someone who has black phlegm should contact their doctor ...

https://www.healthline.com/health/green-phlegm

Seeing black phlegm may mean you have inhaled a high amount of ... Coughing up black sputum may also be accompanied by ...

https://www.cedars-sinai.edu/Patients/Health-Conditions/Bronchitis.aspx

Small amounts of white mucus may be coughed up if the bronchitis is viral. ... of the mucus changes to green or yellow, it may be a sign that a bacterial infection ... the urine pale (except for the first urination of the day, when it is usually darker)  ...

https://www.webmd.com/lung/cold-becomes-bronchitis

Oct 24, 2018 ... What should you do when a cold turns into bronchitis, also called a chest ... If you are coughing up thick green or yellow phlegm, or if you are ...

https://www.webmd.com/allergies/features/the-truth-about-mucus

Apr 10, 2014 ... It generally takes a bad cold, allergy, or contact with something irritating -- like a ... Mucus can also contain tinges of reddish or brownish blood, ...

https://symptoms.webmd.com/cold-flu-map/mucus-and-health

Oct 1, 2018 ... Snot, mucus, phlegm -- call it what you want, it's still gross. ... Dark-colored mucus can signal an infection. ... White, green, or yellow mucus can clear up on its own, but if you also have a sore throat, fever, or chills, let your ...

https://www.unitypoint.org/livewell/article.aspx?id=2008978c-99f7-4051-a1bc-61d5e04b9e4e

Acute bronchitis, also simply known as a chest cold, is common during the colder, winter ... Are you coughing up clear, yellow phlegm or green-colored mucus?

https://www.nhsinform.scot/illnesses-and-conditions/lungs-and-airways/pneumonia

a cough – which may be dry, or produce thick yellow, green, brown or ... you've had your cough, and whether you're coughing up mucus and what colour it is ...

https://wexnermedical.osu.edu/blog/what-does-the-color-of-your-phlegm-mean

Dec 22, 2017 ... Yellowish, green phlegm is likely related to an infection. ... If you're coughing up red, pink or bloody phlegm, you should be seen by your provider. ... Really dark brown, tenacious phlegm is seen in patients who have cystic ...