Double Pterygium is related to multiple pterygium syndrome, escobar variant and impetigo, and has symptoms including multiple fleshy bumps on the surface of the eye An important gene associated with Double Pterygium is KRT12 (Keratin 12), and among its related pathways/superpathways is Embryonic and Induced Pluripotent Stem Cells and Lineage-specific Markers. Affiliated tissues include eye, and related phenotype is skeleton.