Possible hazards:
Inhaling a lot of harmful gases will cause damage to nasal mucosa and endanger lung health.
Radiation can cause facial diseases. There are many specific situations. The welding technicians we met during the internship of engineering students were basically gloomy and their skin quality was not very good. I wonder if it is a common problem in this industry.
The most important thing is to have a certain impact on your reproductive health. When we have an internship in Seiko, the teacher will ask us who is engaged in electric welding. At that time, people in our class said that his grandfather was a welder, and then the teacher asked, do you have an uncle? The classmates replied that no, they were all aunts; The teacher turned to us and asked us, can you guess that I gave birth to a boy and a girl? Our unanimous answer was a girl, and the teacher didn't shy away from saying that I can't have a baby now if I want to. This is what our teacher said himself, without any emotion. I'm not sure about this theory, but basically, this is what the welding master answered.
The harm of electric welding leads to high wages in this industry, and all the people engaged in welding abroad are from China. It is conceivable that foreigners have seen the harm of welding.