There is a brown oval birthmark on the lower right of navel. Does this mean anything?

Coffee spot, also called coffee milk spot, is a common pigmented skin disease, and its color is similar to coffee and milk. 10% ~ 20% Normal people can see a single coffee spot at birth. The color of coffee spots varies from light brown, brown to dark brown, but the color of each piece is the same and very uniform. The depth is not affected by sunlight, ranging from a few millimeters to dozens of centimeters, with clear boundaries and completely normal skin texture.

Coffee spots are not static. As patients get older, they will become bigger and more numerous. The number of coffee spots may change from one to several, with larger area and deeper color. Therefore, coffee spots should be found early and treated early.