How long does a person have pneumonia before it appears on a chest xray?


Hello, Mary,

Pneumonia is a 'catch-all' term for an infection of the lung. So, pneumonia includes several different diseases that may be caused by viruses, bacteria, or fungi.

Different types of pneumonia develop at different rates. Signs of pneumonia include dark yellow or green sputum production in larger amounts than normal, a feeling of congestion that won’t go away, increasing shortness of breath, fever and increasing tiredness.

If you think you have pneumonia, see your physician. You may need antibiotics to fight your lung infection.

Hope this helps,


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Delia White


Please do not ask me to diagnose or interpret images. I am not qualified to do so. I will reject all questions asking for my interpretation of images. I am the photographer, not the physician. I cannot "read" x-rays. Please consult a physician for that information. I can tell you what to expect during most MRI, CT and X-ray procedures.


I now have more than 30 years experience in diagnostic imaging. My specialty is MRI. I am also very familiar with CT and the way we used to take x-rays (everything's digital now)!

I received my Bachelor of Science degree in Radiologic Technology and am registered as an X-ray, CT and MRI Technologist.

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