In the third trimester of pregnancy, i.e. early pregnancy, due to the changes in the hormone level of the whole body, it is easy to cause the vasodilation of the whole body, especially the mucous membrane of the nasal cavity and the surface of the inferior turbinate more obviously. In addition, because pregnant women are prone to nausea, vomiting and other pregnancy reactions in early pregnancy, it is easy to aggravate the pressure of the blood vessels in the nasal cavity and induce nose bleeding. Another thing is that pregnant women in early pregnancy may have more mood swings, easily get on fire, and have more mental stress, which may also easily lead to dryness of the nasal mucosa and thus induce bleeding. Generally speaking, this kind of bleeding may not be a lot, and clinically you can use saline to keep the nose moist, or you can use aromatic oil to keep the nose moist and reduce bleeding, provided that the pregnant woman is not allergic to the oil. If a pregnant woman has recurrent bleeding, it is recommended to have a nasal endoscopy at the ENT clinic, except for nasal bleeding induced by other factors.