Children's Hospital Colorado

Syndactyly

What is syndactyly?

Syndactyly is a condition that a baby is born with, in which fingers or toes are joined. It is the most common congenital (present at birth) hand difference.

What causes syndactyly?

This condition is caused when the fingers or toes don’t separate normally when the baby is growing in the mother’s uterus.

What are the types of syndactyly?

  • Complete: fingers or toes are joined completely the length of the finger or toe
  • Incomplete: fingers or toes are joined only part of the length of the finger or toe
  • Simple: the skin and other soft tissues like blood vessels and nerves are joined together
  • Complex: the skin, soft tissues like blood vessels and nerves and bone are joined together
A graphic illustration of a complete syndactyly with two fingers completely joined and an incomplete syndactyly with two fingers partially joined.

Get to know our pediatric experts.

Sarah Sibbel, MD

Sarah Sibbel, MD

Orthopaedic Surgery

Cailin Brazeau, PA-C

Cailin Brazeau, PA-C

Physician Assistant