What Is XYY Syndrome? Symptoms, Causes, Diagnosis, Treatment, and Prevention

XYY syndrome is really a genetic condition that happens when men comes into the world by having an extra Y chromosome.

Rather of getting one X and something Y sex chromosome, individuals with XYY syndrome get one X and 2 Y chromosomes.

Sex chromosome abnormalities like XYY syndrome are the most typical chromosome abnormalities. (1,2)

Other names for that condition are 47,XYY syndrome, Jacob’s syndrome, XYY karyotype, or YY syndrome. (3)

Signs and Signs and symptoms of XYY Syndrome

Newborns with XYY syndrome don’t display noticeable physical characteristics.

As children grow older, physical signs and symptoms of XYY syndrome may include: (1,2)

  • Taller height
  • Slightly bigger mind size
  • Large teeth
  • Broadly spaced eyes
  • Flat ft
  • Fifth fingers that curve inward
  • Elevated stomach fat
  • Scoliosis
  • Weak tone of muscle
  • Hands tremors or motor tics
  • Bronchial asthma
  • Delayed growth and development of motor skills, for example sitting and walking

However, since these characteristics have a tendency to fall inside the normal range for guys, frequently individuals with XYY syndrome don’t get diagnosed.

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Developmental indications of the syndrome can include: (2,4)

  • Delayed growth and development of speech and vocabulary skills
  • AdhdOrattention deficit disorder (ADD/Attention deficit hyperactivity disorder)
  • Depression
  • Anxiety
  • Autism spectrum disorder

Causes and Risks of XYY Syndrome

Being male may be the greatest risk factor.

Many instances of XYY syndrome aren’t inherited, and also the syndrome occurs at random in pregnancies of ladies all ages and ethnic backgrounds.

People ordinarily have 46 chromosomes in every cell.

Two 46 chromosomes, referred to as X and Y, are known as sex chromosomes simply because they help see whether you develop man or woman sex characteristics.

Females ordinarily have two X chromosomes, while males get one X chromosome and something Y chromosome.

However, boys born with XYY syndrome come with an extra Y chromosome in every cell of the body.

The precise reason this error occurs isn’t known. (1)

How’s XYY Syndrome Diagnosed?

Since there’s frequently no medical need to test for XYY syndrome, diagnosing is generally never made.

With this stated, an analysis can be created before birth while an infant continues to be within the mother’s womb with amniocentesis, that involves gathering an example of fluid that surrounds the fetus or through chorionic villus sampling (CVS), removing tissue samples from part of the placenta. (3)

Both samples can reveal if the extra Y chromosome exists.

If prenatal diagnosis isn’t done, a health care provider can identify XYY syndrome on the person by conducting a clinical evaluation, patient history, and specialized tests, like a karyotype, the most typical test, to identify the existence of an additional Y chromosome. (3)

Boys can also be diagnosed due to learning problems, developmental delay, or behavior issues. (3)

Prognosis of XYY Syndrome

Individuals with XYY can have a much a great lengthy-term outlook. Boys can perform well in class as well as in building relationships, while adults using the syndrome might have effective careers and families. (4)

Time period of XYY Syndrome

There’s no strategy to XYY syndrome, which is an ongoing condition. However, boys and men with XYY can live normal lives and seek help for particular signs and symptoms, for example learning or developmental delays through speech therapy, work-related therapy, or any other assistance. (4)

Treatment and medicine Choices for XYY Syndrome

There’s no strategy to XYY syndrome. However, medication and therapies can sort out signs and symptoms and complications from the condition.

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Medication Options

While medication cannot treat XYY syndrome, some medications may be used to treat conditions associated with the syndrome. For example, medication for acne or ADD/Attention deficit hyperactivity disorder might help because they would in those who have individuals conditions but don’t have XYY syndrome. (3)

Alternative and Complementary Therapies

You aren’t XYY syndrome could possibly get assist with any learning or developmental delays through speech therapy, work-related therapy, or any other assistance. Therapy will also help with ADD/Attention deficit hyperactivity disorder, social interactions, along with other behavior problems. (3)

Protection against XYY Syndrome

Since most installments of XYY syndrome aren’t inherited, and also the syndrome occurs at random in pregnancies of ladies all ages and ethnic backgrounds, it can’t be avoided. (4)

Complications of XYY Syndrome

XYY syndrome could raise the chance of the next: (4)

  • Scoliosis
  • Weak tone of muscle
  • Hands tremors or motor tics
  • Delayed growth and development of motor skills, for example sitting and walking
  • Delayed growth and development of speech and vocabulary skills
  • ADD/Attention deficit hyperactivity disorder
  • Anxiety and depression

Research and Statistics: The Number Of Individuals Have XYY Syndrome?

Based on the National Institutes of Health (NIH), the problem happens in about one in 1,000 live births, with five to ten boys with XYY syndrome born daily within the U . s . States. (2)

Related Conditions and results in of XYY Syndrome

Many instances of XYY syndrome aren’t inherited, and also the syndrome occurs at random in pregnancies of ladies all ages and ethnic backgrounds.

Complications from the condition include physical, for example infertility and sexual function issues, brittle bones, heart and circulation system disease, cancer of the breast, and lung disease, in addition to developmental challenges, including ADD/Attention deficit hyperactivity disorder. (1,2,4)

The nearest disorders connected with XYY syndrome are also problems that include sex chromosome abnormalities, for example Klinefelter syndrome, that is a number of genetic disorders that face men by which a number of extra X chromosomes can be found. (3)

Other disorders that share similar signs and symptoms to XYY syndrome, but have different molecular causes, include:

Sotos syndrome, an inherited disorder characterised by excessive growth pre and post birth

Marfan syndrome, an inherited disorder that affects ligament (3)

Sources We Like

Reliable health sources could be useful for locating information and support for XYY syndrome. Many organizations provide educational materials and will help you find doctors who focus on signs and symptoms associated with the syndrome. There’s also social networks that provide support in addition to practical tips and advice. Listed here are two we advise.

Genetic and Rare Illnesses (GARD) Information Center, provides current, reliable, and simple-to-understand details about rare or genetic illnesses in British or Spanish.

Unique, supports, informs and systems with anybody impacted by an uncommon chromosome disorder or perhaps an autosomal dominant single gene disorder.

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