askvity

Why are babies born with extra fingers?

Published in Medical Genetics 2 mins read

Babies are born with extra fingers, a condition called polydactyly, primarily due to genetic factors. Polydactyly tends to run in families, meaning it is often inherited.

Genetic Basis of Polydactyly

  • Inherited Condition: According to the reference, polydactyly is usually genetic, meaning it is passed down through families from parents to children.
  • Equal Occurrence: The condition affects both boys and girls equally.
  • Ethnic Variations: The location of the extra finger (either on the small finger or thumb side of the hand) can vary among different ethnic groups.

What Polydactyly Means

Polydactyly is simply the presence of an extra digit (finger or toe). Here are some key points:

  • Usually Harmless: Most children with polydactyly are otherwise healthy, with the extra finger being their only medical difference.
  • Varied Appearance: The extra digit can vary in form; it might be a small, nub-like structure, or a fully formed finger or toe.
  • Common Location: While it can occur on any digit, it's most common on the small finger side of the hand or the thumb side.
  • Not Always a Concern: Polydactyly is often an isolated condition and does not signal other medical problems in the baby.

How Polydactyly Is Managed

  • Medical Evaluation: If a baby is born with an extra finger or toe, it's important to consult with a healthcare professional for evaluation.
  • Treatment Options: Depending on the nature of the extra digit, treatment can range from observation to surgical removal.
  • Surgical Removal: In cases where the extra digit interferes with hand function or is cosmetically undesirable, surgical removal is often a solution.

Summarizing Polydactyly

Here's a quick recap about polydactyly:

Feature Description
Cause Usually genetic; inherited from parents.
Occurrence Affects boys and girls equally.
Digit Location Can vary across ethnic groups; most often on the small finger or thumb side of the hand.
Health Impact Most children with polydactyly are otherwise healthy.
Management Can involve observation or surgical removal depending on the case.

Related Articles