WONDER #2010: Why Do People Have Birthmarks?
Question 1 of 3
Port-wine stain birthmarks tend to be what color?
Question 2 of 3
Port-wine stains are often treated with what?
Question 3 of 3
There are two main types of birthmarks: pigmented and what?
Check your answers online at https://www.wonderopolis.org/wonder/why-do-people-have-birthmarks.