A small uterus without any abnormal symptoms usually does not affect fertility, while a small uterus with abnormal symptoms has a greater impact on fertility. If the uterus is small and has abnormal symptoms, it will affect fertility. The condition of small uterus in female patients is mostly due to congenital dysplasia. If the uterine size is not very obvious, the patient does not have any clinical signs and symptoms, and if the ovaries, endometrium and vagina are normal, it will not cause any obvious effect on pregnancy. If the uterus is small and accompanied by symptoms such as scanty menstruation, low menstrual flow, or even prolonged absence of menstruation, it is not easy for women to get pregnant. After successful implantation of some fertilized eggs, the embryo cannot grow and develop normally due to the small uterus, which may lead to miscarriage, preterm delivery and restricted growth and development of the fetus. It is recommended that patients with small uterus should seek prompt medical attention and take effective treatment under the guidance and advice of the doctor. If you become pregnant after treatment, you should go to the hospital regularly for obstetric examination to monitor the growth and development of the fetus.