These dark rings under the eyes can be absolutely normal and just occur in some families especially in girls in the family. However the rings can be a feature of allergy in some children and are known as 'allergic shiners' In other children the dark rings are a sign that the child is anaemic.Your daughter appears well so there is probably no need for any concern but it may be a good idea to have her blood tested just to make sure that she is not anaemic.
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