Call us at

Call us at


Trisomy X syndrome also known as triple X syndrome is a rare genetic disorder that affects only females. This condition occurs when an individual will have three X chromosomes in their cells. This is also another type of mosaicism since not all cells will have the extra X chromosome.

The error occurred during the early stage of cell division, therefore, making the condition milder with fewer signs and symptoms. In fact, many experts believe that there are many cases out there that are undiagnosed.

Even though it’s a genetic disorder, triple X syndrome is not inherited. In fact, there is no known cause why this happens.

The signs and symptoms of Triple X syndrome can defer largely among the female population. While others might not display any symptoms, some can show unusual physical characteristic such as tall stature, which happens to be the most common trait.

Listed below are some of the characteristics associated with triple X syndrome:

  • There is a wide space between the eyes
  • Hypotonia or decreased muscle tone
  • Clinodactyly or curvature of the fifth or pinky finger
  • Smaller head circumference
  • Lower than normal birth weight
  • Learning disability is common
  • Delayed speech and language development, reading difficulty is also present
  • Delayed development of motor skills
  • Cannot process sounds
  • ADHD and anxiety and depression are also common
  • Irregular menses
  • Constipation and abdominal pains are common
  • Flat feet
  • There is mild concavity of the breastbone
  • Presence of skin fold that will cover the corners of both eyes

As with mosaic form triple X syndrome, not all cells have the extra X chromosome. This, in turn, will affect the severity and characteristics of the disorder.
Seizures or kidney malformation is possible complications however they are very rare. Most affected females with triple X syndrome have normal intelligence, but their IQ scores to be 10 to 15 points below their siblings or focus groups.

To learn more about Triple X syndrome and its complications, please visit:

If you think you are suffering from Trisomy X Syndrome you should seek medical assistance. You may also be entitled to Social Security Disability Benefits. The SSA considered Trisomy X Syndrome as a medical condition that would make you eligible for SSDI and SSI. Social Security Administration (SSA) maintains a “Listing of Medical Impairments” (known as the blue book) that automatically qualify you for Social Security Disability Insurance (SSDI) or Supplemental Security Income (SSI).