Pregnant women always have nosebleeds, there may be the following reasons: first, dry rhinitis, which may be related to the pregnant women’s mental anxiety during pregnancy, easy fire or dry weather and other triggers, resulting in the rapid evaporation of nasal moisture, prone to insufficient nasal secretion, resulting in dry nasal mucosa. Sometimes when washing the face or touching the nose, it is easy to cause local rupture of the mucosa and thus bleeding. Second, some pregnant women have allergic rhinitis, or other types of rhinitis, long-term stimulation of the nasal mucosa with secretions, which can easily lead to local erosion of the mucosa, and local erosion of the mucosa also increases the probability of bleeding. Especially if the patient has allergic rhinitis, repeated blowing of the nose in the process of artificial stimulation prone to nosebleeds. Thirdly, the increase in blood volume of the whole body and the change in hormone level after pregnancy can easily lead to vasodilatation of the nasal mucosa, especially the inferior turbinate, which can easily lead to local rupture of the vessel wall and thus bleeding. In conclusion, it is recommended that pregnant women should not be too nervous about nosebleeds to avoid affecting the fetus, and that they can go to the ENT clinic and obstetrics and gynecology department for symptomatic treatment.