What Does a 30mm Lung Nodule Mean?

A 30mm lung nodule may be caused by unhealthy lifestyles, environmental factors, infectious factors, etc. 1. Unhealthy Lifestyles: Long-term smoking or frequent exposure to harmful substances such as nicotine or secondhand smoke can easily irritate the lung mucosa, causing local mucosal hyperplasia. Some may show calcification, which may increase the incidence of nodules. 2. Environmental Factors: Living in an environment with air pollution for a long time, or working and being exposed to environments with asbestos or vinyl chloride can easily lead to the inhalation of harmful components into the lungs, causing inflammatory reactions. The inflammation stimulates the local area, leading to the formation of granulomas and nodules in the later stages. 3. Infectious Factors: For example, when fungi or Mycobacterium tuberculosis invade the lungs, it can easily cause lung lesions. At this time, during imaging examinations, shadows and nodular changes will be found in the lungs. Besides the above reasons, it may also be caused by diseases such as lung fibroids or hamartomas, usually presenting neatly arranged local nodules. Since lung nodules rarely cause obvious symptoms, it is recommended to have regular follow-ups at the hospital for further treatment after understanding the nature of the condition.