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Q. I cough up a lot of phlegm and get a stabbing pain in my lower left back. Why?

Answered by
Dr. Jeremy David O'kennedy
and medically reviewed by iCliniq medical review team.
This is a premium question & answer published on Mar 19, 2017 and last reviewed on: Jul 28, 2021

Hi doctor,

I am a male weighing 76 kg and 5.10 feet tall. Since the past month, I have been having issues with my chest. When I wake up in the morning, I cough up a lot of clear and white phlegm and get a stabbing pain in my lower left back. I am suffering from loss of appetite and often fall short of breath. I feel tired most of the time.

#

Hi,

Welcome to icliniq.com.

  • A productive cough associated with shortness of breath and chest pain always indicates a need for clinical examination and appropriate special investigations as follows.
  1. Clinical examination with auscultation (using a stethoscope).
  2. Chest x-ray.
  3. Sputum specimen for culture.
  4. Oxygen saturation.
  5. Basic blood tests.
  • Based on these results your doctor will know if you have a bacterial or a viral infection and will decide on treatment with or without antibiotics respectively. He will also decide if you could be treated while resting at home or need in-hospital treatment.
  • When an acute respiratory tract infection has been excluded you would be investigated for the less common causes of your symptoms. If you were known for having asthma, then acute asthma exacerbation would replace common acute respiratory tract infection as the most likely cause.
  • The most common cause of a persistent cough in someone of your age and body habitus would most certainly be an acute respiratory tract infection. Acute respiratory tract infection resulting from viral influenza is common in the winter, whereas bacterial bronchitis and pneumonia occur all round the year.
  • The color of sputum is not a reliable evidence to distinguish between viral and bacterial pathogens. So, I suggest you visit your doctor and get a physical and clinical evaluation done as soon as possible, as it can progress and lead to unnecessary complications.

Revert with more information to an internal medicine physician online --> https://www.icliniq.com/ask-a-doctor-online/internal-medicine-physician


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