The areolas are the darker circle around the nipples of your breasts. During pregnancy these will usually become darker in color and enlarge in size. These changes of the areolas are symptoms of pregnancy that may be referred to as either one of the breast changes or one of the skin changes experienced during your pregnancy.
What causes the change?
The changes in your areolas are caused by the increase of blood volume and circulation. Additionally, the increase of estrogen and progesterone causes skin pigmentation that may also attribute to the darkening.
When does it happen?
The changes in your areolas usually occur around six to eight weeks into your pregnancy. Don’t be alarmed if you notice this change before or after this time period because each person responds to their hormone shifts differently.
How frequently does this occur?
Although the specific percentage of women that have darkening of their areolas is not known; we do know that 90% of women experience some type of skin darkening. There are several places on your body that typically darken during pregnancy and the areolas are one of the more common.
Cunningham, F., MD; Leveno, K., MD; Bloom, S., MD; Hauth, J., MD; Gilstrap, L., MD; and Wenstrom, K., MD, Williams Obstetrics 22nd ed.,
Duff, P., MD, Edwards, R., MD,
Scott, J., MD; Gibbs, R., MD; Karlan, B., MD; and Haney, A., MD, Danforth’s Obstetrics and Gynecology, 9th ed., Lippincott Williams & Wilkins,
Crombleholme, W., MD, “Obstetrics,” Current Medical Diagnosis & Treatment 2003, 42nd ed.,
DeCherney, A., MD, and Nathan, L., MD, Current Obstetric & Gynecologic Diagnosis & Treatment, 9th;
Harms, R., MD, Mayo Clinic Guide to a Healthy Pregnancy,
Bankowski, B. MD., Hearne, A. MD, Lambrou, N. MD, Fox, H. MD, and Wallach, E. MD, The Johns Hopkins Manual of Gynecology and Obstetrics, 2nd ed., Lippincott Williams & Wilkins, Philadelphia, 2002.
Beck, W., MD, Obstetrics and Gynecology, B.I. Waverly Pvt., Ltd.,
Johnson, R., MD, Mayo Clinic Book of Pregnancy & Baby’s First Year, William Morrow and Company, Inc., New York, 1994.