Women should be rather careful when they are at work during the pregnancy. They can do some ordinary jobs. However, there are some other jobs which can cause abortion, premature delivery, fetal anomaly and some other diseases. In order to keep healthy for themselves and the fetuses, pregnant women must avoid the dangerous jobs as far as possible. 

The first kind of job is the heavy physical work. The heavy physical work can consume much heat and increase the blood output of the heart, which can increase the burden of pregnant women and affect the normal growth of the fetuses. Sometimes, abortion and premature delivery can even be caused. The second kind of job is the jobs which force expectant mothers to bow or squat. Bowing and squating can oppress the abdomen and affect the healthy growth of the fetuses. Women with edema of lower limbs should especially not attend such jobs. The third kind of job is the work high above the ground. The work high above the ground is rather dangerous, and it is possible for expectant mothers to drop to the ground. Therefore, pregnant women can never engage in the work high above the ground. The forth kind of job is the work under the high temperature with big noise. According to the medical research, the high temperature and big noise in the workplaces can seriously endanger the healthy development of the fetuses. The fifth kind of job is the work relating to the electromagnetic radiation. For the fetuses, the electromagnetic radiation is a terrible killer. It can seriously hurt the fetuses and cause fetal anomaly and even stillborn fetuses. Therefore, pregnant women who engage in the production of radioactive substances or televisions and so on should avoid the jobs during the pregnancy. The sixth kind of job is the work relating to toxic chemical substances or radioactive substances. Toxic chemical substances or radioactive substances can cause the anomaly and cancer and endanger the health of expectant mothers and the fetuses. The lead, mercury, carbon monoxide, benzene, formaldehyde and epoxy ethane contained in chemical substances can seriously cause harms to the human body. The last kind of job is the work of clinical doctors. Clinical doctors must contact with the patients with various kinds of virus. If they are infected with the virus, great danger can be caused to the fetuses. Therefore, they should strengthen the health protection for themselves and prevent the harms caused by the virus.

In short, pregnant women should avoid the jobs which can seriously endanger the health of themselves and the fetuses.