By Sarah Bradley, Nov 29, 2023

Belly button changes in pregnancy are a result of the uterus pushing against the abdominal wall as it grows, says Kecia Gaither, MD, an ob-gyn and director of perinatal services and maternal fetal medicine at NYC Health + Hospitals/Lincoln in the Bronx. Your belly button might flatten or appear thinly stretched, she explains, or it might pop out and protrude from your belly in true “outie” fashion.

You might also notice changes to the color of your skin in and around your belly button, notes Cleveland Clinic. Some pregnant people develop what’s called a linea nigra down the center of their stomach, a dark line that forms when rising hormones cause an increase in pigmentation.

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