Triple X syndrome may not cause any signs or symptoms. If symptoms do appear, they may include:

  • Tall stature
  • Vertical skinfolds that may cover the inner corners of the eyes (epicanthal folds)
  • Delayed development of speech and language skills
  • Weak muscle tone (hypotonia)
  • Curved pinky fingers (clinodactyly)
  • Behavior and mental health problems
  • Premature ovarian failure or ovary abnormalities
  • Constipation or abdominal pains

When to see a doctor

See your daughter's doctor if you have any concerns about your daughter's developmental progress. Your doctor can help determine what may be the cause and suggest appropriate action.

Nov. 08, 2012