what’s that line on a Woman’s belly coming up to her bellybutton and why do sometimes women that never been pregnant gets it?

Question

what’s that line on a Woman’s belly coming up to her bellybutton and why do sometimes women that never been pregnant gets it?

In: Biology

Answer 1

Not so fun fact, when I was a kid I asked my Mum where babies came from, she told me that dark line below a ladies belly button.