Should I quit smoking with mild emphysema in the upper lobes of the lungs?

Nov 23, 2022 Source: Cainiu Health
Disease description:

I've been smoking for many years, and recently I was diagnosed with mild emphysema in the upper lobe of my lung. I'd like to know whether I must quit smoking with this condition?

Doctor's answer (1)
Dr. Sun Qifeng
Mild emphysema in the upper lobes of the lungs usually requires smoking cessation, as the primary cause of emphysema is closely linked to excessive smoking, smoking low-quality tobacco, and exposure to secondhand smoke. Quitting smoking helps reduce the intake of harmful substances such as nitric oxide, nicotine, and tar, alleviates discomfort caused by mild upper lobe emphysema, and slows the progression of the disease.