For example, the definition of dangerous and harmful factors in the teaching materials of safety assessors can be understood as follows:
Risk factors lead to safety accidents, and harmful factors lead to occupational diseases. Occupational diseases and safety accidents are actually equivalent, but occupational diseases are mostly chronic and safety accidents are sudden.
Safety accidents can be known to the naked eye, and most of the occupational diseases need occupational health examination except acute ones.
"Early detection and early treatment", the sooner you find it, the better you can handle it. If the type of work-related injury is unqualified, it is necessary to change the position of the worker so that the worker can no longer be exposed to occupational hazards. This is especially true when diagnosed as an occupational disease. Don't underestimate occupational diseases. Some chronic occupational diseases will accompany you all your life, and you will be tortured by diseases all your life (my grandfather is coal dust, and his cough is light all his life).
Say a lot: Occupational health examination is the most effective way to find occupational diseases. Very important.