Pregnant women who have bad breath: First, do a good job of oral hygiene, brush your teeth twice a day, morning and evening, after eating, it is also best to rinse your mouth with water or mouthwash, to avoid the fermentation of food debris in the mouth to form bad breath, in addition to cleaning up oral hygiene can also prevent other diseases in the oral cavity of pregnant women. Second, pregnant women who have bad breath may be caries or wisdom teeth and other problems in the mouth, pregnancy is not recommended for pregnant women on the teeth, oral treatment, so at this stage if there is bad breath, you can eat more vitamin B, vitamin C content is relatively rich in food, which can provide more nutrients to the oral cavity, improve the gums as well as the entire mucous membrane in the mouth resistance, so as to ward off oral problems, but also be able to make the bad breath The problem of bad breath can also be relieved.