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General
Jacobs Syndrome, also known as XYY syndrome, is a genetic condition that occurs when a male has an extra Y chromosome. This condition is usually not inherited and occurs spontaneously during sperm or egg cell formation.
2 people with Jacobs syndrome
Learn from others who are experiencing Jacobs syndrome.
Signs & symptoms
Many males with Jacobs syndrome may not have any noticeable symptoms or may have only mild symptoms. However, some individuals may have physical and developmental differences, such as increased height, delayed speech and language development, learning difficulties, and attention deficit hyperactivity disorder (ADHD). In rare cases, Jacobs syndrome may be associated with more severe medical issues, such as seizures or behavioral disorders.
Diagnosis
Diagnosis of Jacobs syndrome typically involves genetic testing to confirm the presence of an extra Y chromosome. This may be done prenatally or after birth through blood testing.
Treatment
Treatment of Jacobs syndrome focuses on managing any associated symptoms or medical issues. For example, speech therapy or educational interventions may be recommended for individuals with delayed speech and language development or learning difficulties. Behavioral therapy or medication may be recommended for individuals with ADHD or behavioral disorders. In rare cases, surgery may be necessary to address medical issues, such as hernias.
Note
☝ We provide information on prescription and over-the-counter medicines, diagnosis, procedures and lab tests. This material is provided for educational purposes only and is not medical advice, diagnosis or treatment.
National Institutes of Health ∙ World Health Organization ∙ MedlinePluse ∙ Centers for Disease Control and Prevention
☝ All information has been reviewed by certified physicians from Alike
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