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A 21-year-old member asked:

my mucus is a deep yellowish green, did my cold give rise to a bacterial sinus infection?

4 doctor answers13 doctors weighed in
Dr. Michael Klein
Family Medicine 21 years experience
Maybe: One of the common myths about the common cold is that any yellow or green mucous means there is a bacterial infection present. All viral upper respiratory infections (colds) can make yellow mucous even without bacteria. The predominant feature is time and change. If you have had a cold for longer than 7-10 days, or if suddenly you develop thicker mucous after seeming to get better, its possible.
Dr. Kenneth Cheng
Family Medicine 31 years experience
It depends...: Many studies have concluded that the color of one's mucus cannot predict whether one has a bacterial infection or a viral infection. Statistically, most upper respiratory infections (uri's) are caused by viruses (the common cold). As a general rule, one should see a physician if your symptoms are progressively worsening.
Dr. Dean Giannone
Internal Medicine 25 years experience
Not necessarily: The association between the color of mucus and the presence of infection was removed long ago. Sinus infection would be defined by the presence of other symptoms - sore throat, headache, facial pains, earache, fatigue, chills, sweats, post nasal drip, achiness.
Dr. Cynthia Point
Specializes in Internal Medicine
Maybe: You may have had your viral infection turn bacterial. The best way to find out is to have your doctor check you out. If it is only a very small amount of discolored mucus, it may clear on it's own, but if it has been going on for days, it is important to get it checked.

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Similar questions

A member asked:

Do colds lead to ear infections in children?

3 doctor answers5 doctors weighed in
Dr. Lisa Roberts
Pediatrics 23 years experience
Yes: Colds tend to precede the onset of an ear infection in children. This is because a cold causes fluid to develop in the middle ear, that at times may get infected by bacteria or viruses. Ways to decrease your baby's risk of ear infections are: 1) avoid smoke exposure, 2) try to limit pacifier use in those prone to ear infections, and 3) avoid having your baby drink milk laying down flat.
A 37-year-old member asked:

Is vibramycin (doxycycline) effective for respiratory infections?

1 doctor answer2 doctors weighed in
Dr. Joel Gallant
Infectious Disease 36 years experience
Generally not: Most respiratory infections are caused by viruses and should not be treated with antibiotics. Vibramycin (doxycycline) will treat some bacterial infections.
A member asked:

Thick nasal mucus - I have to blow my nose very hard to get the plug feeling out, it is commonly very thick, white (not clear). Should I be concern?

1 doctor answer1 doctor weighed in
Dr. Jeffrey Pollard
ENT and Head and Neck Surgery 21 years experience
Thick nasal mucus: Thick nasal mucus can be related to sinusitis, but not necessarily. If you have chronic allergies or recurrent infections you should consult a doctor who can identify if there is an opportunity to improve nasal inflammation with sprays or treat infection with antibiotics. You may benefit from good nasal hygiene as well which involves using salt water rinses to clear mucus and allergens.
A 25-year-old member asked:

Can bronchitis and an upper respiratory tract infection elevate liver function?

1 doctor answer2 doctors weighed in
Dr. Nela Cordero
Pediatrics 54 years experience
AURI: Auri is respiratory tract infection and bronchitis, elevation of liver enzymes and functions involve the GI tract or system.
A 30-year-old female asked:

My baby is a boy, 2 years and 11 months I did a complete blood picture and he has 10.6 haemoglobin is that value anaemic?And is it dangerous? And how can it b treated

1 doctor answer6 doctors weighed in
Dr. Michael H. T. Sia
Pediatrics 31 years experience
It is low...: Have your doctor explain the results so you can understand what the plan will be. Most likely it is an anemia due to iron deficiency, but need to rule out genetic reasons like thalassemias. Treatment is via iron supplements or foods rich in iron like green leafy vegetables, meats, beans and iron enriched cereals. Egg yolks are also a good source.

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Last updated Dec 3, 2019
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