A newborn named Ronan has drawn widespread attention online after photos of his right hand circulated through the Lucky Fin Project and accounts including Complex. His mother, Claire, described a missing digit and webbing between the fingers.
Claire wrote that she and her husband learned at 20 weeks of pregnancy that Ronan would be born with a limb difference affecting his right hand. Doctors initially told them he was missing a finger. Additional ultrasounds, an amniocentesis, and genetic bloodwork from both parents indicated the difference was an isolated birth defect and that Ronan was otherwise healthy, according to the account shared by the organization.
After the birth, the family observed both the missing digit and syndactyly, the medical term for webbing of the fingers. “We are absolutely in love with how unique our boy really is, and cannot wait to see how he grows and adapts to the world with his ‘lucky fin,’” Claire said in the post.
The phrase “lucky fin” refers to the smaller fin of the character Nemo in the film Finding Nemo. The Lucky Fin Project, a Michigan-based 501(c)(3) nonprofit, uses the term for children born with upper-limb differences. Founder Molly Stapelman launched the effort in 2010 after her daughter Ryan was born in 2007 with symbrachydactyly, a condition marked by short or underdeveloped fingers that can include missing digits and syndactyly. The group connects families, shares medical resources, and supports camps and related efforts, according to its website.
Posts that amplified Claire’s account described Ronan’s difference as symbrachydactyly and stated it occurs in roughly 1 in 30,000 to 40,000 births. Medical references place the incidence of symbrachydactyly at approximately 0.6 per 10,000 live births. The condition is typically unilateral, not inherited, and thought to result from a disruption in blood flow to the developing limb. It can appear with or without associated syndromes such as Poland syndrome.
The Lucky Fin Project first shared Claire’s statement and photos on Instagram on April 23, 2026. The images show Ronan as a newborn in a hospital bassinet beside a handprint card, along with close views of his right hand held next to an adult hand. Accounts including Pubity and Complex recirculated the material in mid-May, prompting comments from other parents who described similar differences in their own children.
Stapelman has said a child born with a limb difference is not tragic and that treating children as limited would be the greater harm. The organization, based in the Detroit area, continues to distribute awareness materials and maintain a network for families navigating congenital limb differences.
