Which change in the integumentary system during pregnancy may persist post-delivery?

Striae gravidarum, commonly known as stretch marks, are changes in the integumentary system that result from the rapid stretching of the skin during pregnancy. As the skin expands to accommodate the growing abdomen, the elastic fibers in the dermis can tear, leading to these marks. While they may initially appear red, purple, or dark brown due to increased blood flow and pigmentation, they usually fade to a lighter color post-delivery but can remain visible as silvery or lighter streaks.

These marks tend to be permanent or semi-permanent in many women, which is why they are most commonly associated with lasting changes from pregnancy. Other changes in the integumentary system can often resolve after delivery. For example, chloasma, hyperpigmentation, and angiomas usually regress following hormonal adjustments that occur after childbirth. Stretch marks, however, are more likely to persist as a residual effect of the body changes experienced during pregnancy.