1 doctor weighed in:

No known lung issues, never smoked, but is it normal to occasionally cough up mucous with a 1" stringy, hard piece of tissue, helix-structure inside?

1 doctor weighed in
Dr. William Walsh
Addiction Medicine

In brief: No

It is not normal to do so.
There are several potential causes from asthma to alleric bronchopulmonary aspergillosis, so save one and bring it in to your doctor.

In brief: No

It is not normal to do so.
There are several potential causes from asthma to alleric bronchopulmonary aspergillosis, so save one and bring it in to your doctor.
Dr. William Walsh
Dr. William Walsh
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