Polydactyly – What is it, Symptoms and Treatments

Polydactyly – What it is, Symptoms and Treatments . In addition,  Polydactyly  is a condition in which the person has more than five fingers and/or toes. Polydactyly varies greatly in presentation, Polydactyly may  have the presence of one or more fully developed extra fingers, or may have only a simple skin protrusion .


There are two types of Polydactyly :

  •  Post-Axial Polydactyly: Post -Axial   Polydactyly affects  either the ulnar (ulnar) side of the hand or the peroneal (lateral) side of the foot. The abnormal gene has an autosomal inheritance with incomplete but high penetrance, being approximately 10 times more common in black individuals than in Caucasians.
  • Pre-Axial Polydactyly: Pre-Axial  Polydactyly affects  the radial side of the hand or the tibial (medial) side of the foot. It comprises several types of defects, such as Polydactyly of the thumb, Polydactyly of the index finger, polysyndactyly, among others.

Causes of  Polydactyly  Polydactylyoccurs when the body takes a different path than usual while it is forming hands or feet during fetal development. The characteristic of Polydactyly  can have a family trait or be an isolated case,  Polydactyly  can also be a benign condition such as having a blunt thumb.

Polydactyly is considered a non-syndromic anomaly However, the feature of Polydactyly  can happen as part of a syndrome, a group of recognizable clinical features that often occur together.

Symptoms of Polydactyly:  The most obvious symptom of Polydactyly is the presence of more than five fingers on each hand or foot. Postaxial polydactyly is approximately ten times more common in black individuals than in Caucasians.

Pre -axial polydactyly comprises several types of defects, such as thumb polydactyly, index finger polydactyly, association with syndactyly (joined fingers), among others Polydactyly  usually occurs without any other symptoms or illnesses.

Extra fingers may work well or show poor development and functioning. Polydactyly can be accompanied by a more serious genetic disease.


Risk Factors for Polydactyly:  Polydactyly canhappen due to a genetic mutation caused by an autosomal dominant allele. Chances of family inheritance are 50% if one parent has the problem, or 100% if both parents have it. Polydactyly involves just one gene that can cause several variations.

Treatment of Polydactyly:  Polydactyly does not usually cause problems to those who have it, but as the anomaly Polydactyly  brings some surprise, it is advisable to have surgery to remove the extra toe(s).

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Surgical removal is easy and usually uncomplicated, when extra fingers are rudimentary, often boneless, and pedicled, they can be removed at birth. Often, simply tying a thread tight around the base can cause the finger to fall out. Larger, more fully formed fingers require more delicate surgery, performed by a hand surgery specialist at a later date, usually starting at age three.

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