Erin and Abby Delaney: A Remarkable Journey of Courage and Survival
It’s hard to imagine a life shared so intimately that two people are connected at the very top of their heads. Yet for Erin and Abby Delaney, this was reality from the moment they were born. Doctors knew their survival depended on a complex, high-stakes surgery — one that carried the possibility of losing one or both girls. Families, medical teams, and the world watched as hope and courage were put to the ultimate test.

Born in July 2016 in Philadelphia, Erin and Abby were extremely rare craniopagus twins, meaning their skulls were fused and parts of their brain membranes overlapped. This made separation not just difficult, but life-threatening. Without surgery, survival beyond infancy was unlikely.
At just ten months old, surgeons made the extraordinary decision to attempt the separation. Parents were warned honestly about the risks: even with a successful operation, one child might not survive. The surgery demanded unparalleled precision. While separating skull bones posed its own challenge, carefully untangling the overlapping brain tissue required skill akin to a space mission — even a millimeter of error could result in severe disability or death.
Miraculously, the operation succeeded. The girls survived and gradually adapted to life as individuals. Today, at nine years old, Erin and Abby continue to grow and thrive. Their developmental milestones may differ slightly from their peers, but overall, they lead vibrant, joyful lives. Photos taken after the surgery capture their progress and resilience — a testament not just to survival, but to the triumph of modern medicine and devoted parenting.
Conclusion
The story of Erin and Abby Delaney is one of extraordinary courage, skill, and hope. From the brink of unimaginable risk, these sisters emerged as independent, thriving children. Their journey reminds us of the fragility and resilience of life, and the remarkable lengths that medicine and love can go to protect it.