When the mucous membranes go into an overdrive, it increases the production of mucus and phlegm, which accumulate in the lungs. This phlegm soon starts accumulating in the lungs and causes chest congestion. Take a look at what triggers the mucous membranes and are considered as the primary causes of chest congestion.1
Airborne particles:
It is common knowledge that the air isn’t as clean as you expect it to be. It contains dust and other allergens. Though these airborne particles are quite harmless, when they get trapped in the mucus membrane of the nose and airway, the problem arises. There are tiny hair-like structures called cilia that transport these particles along with the mucus to the throat. This mucus is what makes your chest feel congested.2
Bacteria and viruses:
The other prominent causes of chest congestion are bacteria and viruses. When a bacteria or virus enters the body, it causes an infection, which sometimes leads to chest congestion. Typically, in the beginning, these bacteria and viruses act like allergens; they enter the body through the mucus membrane and are transported through the cilia. The only difference is that these elements cause inflammation, which signals your body to produce excess mucus in the airways to remove these particles. When the body fails to expel this thick mucus by its usual methods, it gets stuck inside the lungs, causing chest congestion.3