Welders have an impact on male fertility, which can be more significant if they work for long periods of time while preparing for pregnancy. The work mode of welders is usually in a squatting position, when the male perineum will be stimulated, affecting the production of semen. At the same time, when squatting, the perineum is prone to a high temperature environment, which is also unfavorable to the testicles and may reduce the vitality of sperm. If a man works as a welder for a long period of time while preparing for pregnancy, it will have a more obvious effect on fertility. Therefore, when preparing for pregnancy, welders need to go to the hospital to check the sperm count as well as the activity level, stay away from the welding environment when preparing for pregnancy, and at the same time develop good living habits to promote the birth of a healthy baby. If there is a loss of fertility, you need to seek medical advice and make reasonable interventions under the guidance of your doctor.