The reasons for gum bleeding in early pregnancy are the following: first, it may be caused by endocrine dysfunction, the hormone level in a woman’s body will have a large change when she is pregnant, whether it is the amount of hormones or the type of hormones, there is a large gap with the previous pregnancy. Hormones can act on the blood vessels of the gums resulting in increased vascular permeability, which can lead to bleeding gums in early pregnancy, without treatment, and the bleeding can stop on its own as the hormones in the body return to normal. Second, caused by poor nutrition, when women have hypoproteinemia or reduced platelet production, it can cause the body’s coagulation dysfunction. In the early stages of pregnancy, women have a high demand for nutrients, and failure to replenish essential nutrients, proteins, vitamins and amino acids can cause nutritional deficiencies and malnutrition, thus interfering with the normal synthesis of clotting substances, which can cause gum bleeding.