A uterus that is too small may affect the development of the fetus and needs to be judged in the context of the specific situation. The development and size of the uterus varies from woman to woman, and the uterus, as a muscular organ, has a great deal of tension, so there is no fixed clinical standard for determining the size of a girl’s uterus. If the uterus is small, it will not affect the development of the fetus, so there is no need to worry or stress too much, and you can wait patiently for the delivery. If the uterus is small due to congenital dysplasia, which is also known as infantile uterus, the development of the fetus may be affected. Naïve uterus usually means that after puberty, the uterus is small in size, the cervix is long and mostly conical in shape, and women will show symptoms such as scanty menstruation and primary amenorrhea. If she suffers from congenital uterine dysplasia, it will affect the development of the fetus, and she is prone to miscarriage and preterm labor. Therefore, a uterus that is too small may have an impact on the development of the fetus, increasing the risk of adverse prognosis such as miscarriage and preterm labor. It should be judged in the context of the overall development of the reproductive organs, and if there are abnormalities, timely medical consultation is required to avoid delaying the condition.