After pregnancy, due to hormonal changes in the body, the oral cavity, especially the gums, are prone to inflammation, when inflammation occurs, the gums have congestion and other manifestations, it is easy to feel a dry mouth, dry tongue, after pregnancy, some women will be supplemented with nutrients, eat a large number of diets containing high protein, which may add a lot of burden to the stomach and intestines, resulting in indigestion. After pregnancy, there may also be less activity, as well as to the late stage of pregnancy, the gradual development of the fetus, pregnant women are prone to frequent urination. Pregnant women drink less water in order not to go to the toilet all the time, which may cause indigestion, in addition to drinking less water is also very easy to feel dry mouth.