What do dark circles under a child's eyes mean?
Photo Credit: Courtesy of 3DStockPhoto (dark circles image)
Sometimes called "allergic shiners", dark under-eye circles are usually caused by allergies. ... This expands and darkens the veins that drain from the eyes to the nose. Congestion can also cause blood to sit in the area under the eyes. Often, doctors cannot find a cause for your child's under-eye circles.