For the first 15 months of their lives, sisters Ally and El experienced the world in a way few children ever could. The two girls were born conjoined at the pelvis, an exceptionally rare form of conjoined twinning that required them to share important parts of their lower-body anatomy.

Their family eventually traveled to Seattle Children’s Hospital, where specialists began preparing for a separation operation in the fall of 2024. The complexity of the case meant that the procedure could not simply be planned by one surgical team. More than 30 healthcare professionals became involved, including pediatric surgeons, urologists, gynecologists, plastic surgeons, neurosurgeons, anesthesiologists, orthopedic specialists, nurses and technicians.

The team met every month to carefully plan the operation. Doctors used detailed MRI scans, fluoroscopy and endoscopy to create a precise map of the girls’ shared anatomy. Every stage of the procedure was discussed in advance, including the instruments, operating-room setup and backup plans in case unexpected complications arose.

Then, on February 28, 2025, when Ally and El were 15 months old, the long-awaited operation began.

The surgery lasted approximately 18 hours. Surgeons carefully separated the girls’ shared gastrointestinal, gynecological and urinary systems and then performed complex reconstruction of each child’s pelvis and surrounding soft tissues. Absorbable mesh and tissue flaps were used to help reconstruct their bodies after separation.

When the operation was finally over, the sisters were no longer physically connected.

But the medical journey was far from finished.

Both girls initially required strict movement restrictions while their surgical wounds healed. They then began intensive rehabilitation involving physical therapists, occupational therapists and speech-language specialists. The goal was not simply to help them recover from surgery, but to help each child develop the strength, coordination and independence needed for everyday life.

By late May 2025, Ally and El were strong enough to leave inpatient rehabilitation and continue their recovery at home. Their progress continued through therapy as they worked on speech, fine motor skills and muscle strength while learning to move independently.

Their mother, Sam, described one of the most emotional parts of the recovery: watching her daughters begin to develop their own distinct personalities. The girls were crawling, learning new words and gradually discovering what it meant to move through the world as two separate individuals.

Their story is remarkable not simply because of the length of the operation, but because of the extraordinary preparation behind it.

For months, dozens of specialists had studied their anatomy, rehearsed the procedure and planned for every possible complication. The operation demanded precision at every stage because the doctors were not only separating two bodies—they were also rebuilding them so that each child could have the greatest possible chance of growing and developing independently.

Today, Ally and El’s journey represents much more than a successful surgical procedure.

It is a story about two sisters who began life physically connected and gradually entered a new chapter as individuals. Their recovery still requires patience, therapy and medical follow-up, but every crawl, every new word and every strengthening muscle represents another step toward independence.

Their 18-hour operation may have separated their bodies, but it also opened the door to something their family had hoped for from the beginning:

the chance for Ally and El to grow up, develop their own personalities and discover life on their own terms. ❤️

Sources

• Seattle Children’s Hospital — official report on the successful separation surgery and rehabilitation.
• MyNorthwest — coverage of the 18-hour operation and the medical team.
• KIRO 7 News — reporting on the twins’ surgery and recovery.
• PEOPLE — coverage of Ally and El’s separation and progress after surgery.
• E! News — reporting on the sisters and their successful separation.