Normal uterine dimensions on ultrasound examination

Parameter	Nullipara	Primipara	Multipara	Menopausal ≤5 years	Menopausal >5 years
Uterine length (cm)	7.3 (0.8)	8.3 (0.8)	9.2 (0.8)	6.7 (0.7)	5.6 (0.9)
Corpus width (cm)	4.0 (0.6)	4.6 (0.5)	5.1 (0.5)	3.6 (0.5)	3.1 (0.5)
Corpus height (cm)	3.2 (0.5)	3.9 (0.5)	4.3 (0.6)	3.1 (0.4)	2.5 (0.4)

The mean and standard deviation for uterine length, width, and height in premenopausal women (nulliparas, primiparas, multiparas) and menopausal women (less than or equal to 5 years of menopause, and greater than 5 years of menopause) without uterine or ovarian pathology. These dimensions represent the outer dimensions of the uterus, not the inner dimensions (ie, dimensions of the endometrial cavity).

Data from: Merz E, Miric-Tesanic D, Bahlmann F, Weber G, Wellek S. Sonographic size of uterus and ovaries in pre- and post-menopausal women. Ultrasound Obstet Gynecol 1996; 7:38.

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Normal uterine dimensions on ultrasound examination