If a woman has an ultrasound and finds that her uterus is 35 x 25 x 33 mm, the uterus is indeed too small for a woman of childbearing age, and there is a possibility of uterine dysplasia. The size of the uterus is generally normal if it is menopausal or prepubertal and there is no other discomfort.
For mature women, the normal length of the uterus is 7~8 cm, width 4~5 cm, thickness 2~3 cm, weight is about 50~70 grams, and capacity is about 5 ml. If the uterus is only 35 x 25 x 33 mm in an adult woman, it is possible that the uterus is underdeveloped, or naïve.
Naïve uterus is a congenital developmental abnormality, which means that the uterus is normal in structure and morphology, but is relatively small in size and has a relatively long cervix. With a naïve uterus, patients may exhibit scanty menstruation or delayed menarche, dysmenorrhea, and infertility.
If the examination determines that the uterus is naïve and there are no other comorbidities, it can be treated with sequential cycles of estrogen and progesterone under the guidance of the doctor to promote uterine development and increase the chances of pregnancy.
If the size of the uterus is that of a menopausal woman’s uterus, it is most likely normal, as it is normal for the uterus to have shrunk in size by this time. It is also normal for the prepubertal uterus to have not yet developed, so this size is normal, and the uterine adnexa can be reviewed after the onset of menstruation for further development.