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Genetic and Rare Diseases Information Center (GARD)

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47, XYY syndrome

Other Names for this Disease
  • Jacobs syndrome
  • XYY Karyotype
  • XYY syndrome
  • YY syndrome
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Your Questions Answered

1 question(s) from the public on this disease have been answered. Submit a new question.
  • I have a 4 year old son who was diagnosed with XYY karotype about a year ago.  Lately, he has had a lot of behavior issues; he is very strong and he does throw several temper tantrums a day.  I am looking for any advice how I can redirect him and get through to him on a positive note. Click here for answer