Pregnant women should not use hot melt glue guns to avoid adverse effects on the fetus. Hot melt glue gun in the process of use will emit some harmful gases to the human body, these gases do not affect ordinary people, but for pregnant women, these harmful gases may cause adverse effects on the growth and development of the fetus, resulting in abnormal development of the fetus. Women in the first trimester of pregnancy, the fetus is extremely sensitive to a variety of harmful stimuli, a small amount of harmful stimuli may lead to fetal development deformity or even miscarriage, so women in the first trimester of pregnancy should be prohibited from the use of hot melt glue gun. In the middle and late stages of pregnancy, due to the increased resistance of the fetus to external stimuli, pregnant women occasionally use the hot melt glue gun, generally does not cause significant adverse effects on the fetus, but should also try to avoid using.