After you quit smoking, your lungs may gradually become cleaner. However, lung damage that has already occurred generally cannot be recovered.
Tobacco contains a large amount of smoke tar, nicotine, carbon monoxide, these substances can be on the human respiratory epidermal epithelial cells, alveolar cells damage, prone to chronic bronchitis, lung cancer and other diseases.
After quitting smoking, the lungs may gradually become cleaner without the continuous damage of these harmful substances, as the cilia movement gradually recovers and removes the residual harmful substances from the respiratory tract. However, lesions that have already formed, such as chronic bronchitis and lung cancer, generally cannot return to normal.
Good habits should be practiced in daily life to avoid smoking and exposure to harmful gases. When discomfort occurs, you can consult the local hospital for medical consultation and follow the professional doctor’s advice to deal with it.