Pregnant women have a lot of boogers, clinically there may be the following reasons: the first reason is that during pregnancy, due to the change of progesterone, the increase of blood volume of the whole body, as well as the decrease of resistance of pregnant women, lower immunity, etc. easily induced rhinitis, resulting in the nose is not ventilated, nasal secretions and other related situations. The second reason is that during pregnancy, due to the presence of the fetus, pregnant women often do not sleep well, do not rest well, easily get angry, sometimes eat less vegetables and fruits, drink less water, easily induce dryness of the nasal mucosa, easily make the nasal secretions crusted, forming nasal stools, which can not be easily discharged by themselves. Clinically, the above two reasons are the main reasons why pregnant women have more boogers. It is recommended to use saline to rinse the nasal cavity to flush out the nasal stool, which will be of great benefit to reduce the nasal stool and also relieve the symptoms related to nasal disinflation.