For a newborn baby, dark labia are normal.
When the baby is in the mother’s womb, it will be influenced by the mother’s hormone level, and when it is born, this hormone level will gradually subside, and the color of the baby’s labia will gradually transition slowly from darkening to a relatively normal color, which is light red or dark red. Therefore, the baby’s labia are diffusely darkened and can be observed on a follow-up basis.