Sorry about the blurry photo.
I have several birthmarks....I'm showing two....won't frighten you with the others.
Anyway, I use to ask mom about mine. She'd laugh and say, "I was craving chocolate!" Of course, I believed her, sort of, but became curious and researched it. Turns out birthmarks, according to medlineplus.gov are abnormalities of the skin that are present when the baby is born. Others say that birthmarks are pigmentations of color under the skin (American Academy of Dermatology). It seams I have the "Café-a-lait which is French for "coffee with milk" birthmark.
I think I like mom's explanation better. Birthmarks are also said to be harmless. The Mayo Clinic website has a birthmark slideshow. Sorry I couldn't link to it......not smart enough for that today...sigh!
Anybody else have an interesting birthmark?