10 Lung Infection Symptoms

Symptom #2: Phlegm Production

A cough may be dry or wet. Dry coughs usually result from conditions like smoking or inhalation of foreign matter like dust. A wet or productive cough on the other hand shows that there is phlegm in the lungs and is a sign of a lung infection. Once pathogens lodge in the lungs, they start to multiply.

This causes an infection to grow and cover a larger area. The immune system responds by producing more mucus in the lungs in a bid to expel the pathogens. With the increased mucus, coughing continues and may worsen as there is more mucus to expel. The mucus may be yellowish, brownish or greenish in color. In some cases, the phlegm may be blood-stained.

Lung Infection Symptoms

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