At your age, it is within normal range. It is not common to measure ovarian volume across the United States, but is done by some doctors and centers. See the abstract of a scientific article below.
Ovaries certainly are very active and can fluctuate in the premenopausal years. That is why there is a "mean" or "average". There are a certain number of ovaries that will be much larger or much smaller at any given measurement.
However, once something starts getting measured you generally want to be sure that it does not keep going up. Most likely , if you re-measure it, it will probably go down again.....but if you're worried about the mean volume continuously going up, one might ask for one more measurement to make sure it is bouncing around within normal rather than going up continuously.
If it keeps going up after another measurement, especially into the "abnormal" range, it might be prudent to get a second opinion.
Ovarian Volume Related to Age
E. J. Pavlik Ph.D., P. D. DePriest M.D., H. H.
Gallion M.D., F. R. Ueland M.D., M. B. Reedy M.D., R. J. Kryscio Ph.D.
and J. R. van Nagell, Jr. M.D.1, 2
Division of Gynecologic Oncology, Department of Obstetrics and
Gynecology, and the, Department of Statistics, University of Kentucky
Medical Center, Lexington, Kentucky, 40536
Received 13 October 1999. Available online 25 March 2002.
Abstract
Objective. The goal of this study
was to determine the relationship of ovarian volume to age, height, and
weight in women undergoing transvaginal sonography.
Methods.
Thirteen thousand nine hundred sixty-three women 25–91 years of age
undergoing annual transvaginal sonography as part of the University of
Kentucky Ovarian Cancer Screening Program were the subjects for this
investigation. Each ovary was measured in three dimensions, and ovarian
volume was calculated using the prolate ellipsoid formula (L × H × W × 0.523). Mean ovarian volume according to age was calculated for each decade of life.
Results. Data were obtained from 58,673 observations of ovarian volume. Mean ovarian volume was 6.6 ± 0.19 cm3 in women less than 30 years of age; 6.1 ± 0.06 cm3 in women 30–39; 4.8 ± 0.03 cm3 in women 40–49; 2.6 ± 0.01 cm3 in women 50–59; 2.1 ± 0.01 cm3 in women 60–69; and 1.8 ± 0.08 cm3 in women ≥70. Mean ovarian volume was 4.9 ± 0.03 cm3 in premenopausal women and 2.2 ± 0.01 cm3 in postmenopausal women (P
< 0.001). The use of exogenous estrogens was associated with a
significant reduction in ovarian volume in women 40–59 years of age,
but not in women ≥ 60. Ovarian volume was unrelated to patient weight
but was greater in tall women (>68 in.) than in short women (<58
in.).
Conclusion. There is a statistically significant
decrease in ovarian volume with each decade of life from age 30 to age
70. Mean ovarian volume in premenopausal women is significantly greater
than that in postmenopausal women. The upper limit of normal for
ovarian volume is 20 cm3 in premenopausal women and 10 cm3 in postmenopausal women.
Regards,
Dr V
www.gyncancerdoctor.com