Whether woodworking dust will cause pneumoconiosis is related to the amount of dust accumulated in the lungs and the nature of the dust, if the dust is smaller, more accumulated, longer exposure time and poorer protection can lead to the possibility of pneumoconiosis. 1. Nature of dust: the main cause of pneumoconiosis is inhalable dust with a diameter of <10 microns (especially <2 microns). Such fine particles can reach the deep part of the respiratory tract with breathing, causing inflammatory reactions, leading to cell and tissue damage, and ultimately leading to pulmonary fibrosis; different types of dust have different hazards to the lungs, among which silica and asbestos are the most powerful substances that lead to pulmonary fibrosis. 2. Dust accumulation: The occurrence and degree of pneumoconiosis are closely related to the accumulation of dust in the lungs. The higher the concentration and the greater the dispersion of dust in the workplace, and the longer the exposure time and the poorer the protective measures, the more dust is inhaled and deposited in the lungs, and the more likely to develop pneumoconiosis. As the prognosis of pneumoconiosis is not good and the quality of life of late-stage pneumoconiosis patients is poor, therefore, the prevention of pneumoconiosis is more important than the treatment, and we should avoid prolonged exposure to excessive dust in our daily work and life as much as possible and do a good job of self-protection in the process of exposure, in addition to the need for regular medical checkups, and go to regular hospitals in time for consultation when there are discomforts.