Do Cafe au lait spot birthmarks get larger and darker over time?

Café au lait spots are typically light brown birthmarks that can vary in size and shape. They usually do not get darker or larger over time; however, they may become more noticeable as a person grows, especially if they are present at birth. In some cases, the presence of multiple café au lait spots can be associated with certain genetic conditions, so it's advisable to consult a healthcare professional if there are concerns about them.