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Jacobs syndrome

Jacobs syndrome: Introduction

A rare chromosomal genetic syndrome where the male person has an extra Y male chromosome, becoming XYY instead of normal XY (male) or XX (female). The person is male and may be mostly normal, or may suffer from minor features from excess male hormones, such as excess acne being very tall, and in some cases behavioral complaints such as aggression. ...more »

Symptoms of Jacobs syndrome

Wrongly Diagnosed with Jacobs syndrome?

Jacobs syndrome: Related Patient Stories

Jacobs syndrome: Complications

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Causes of Jacobs syndrome

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Disease Topics Related To Jacobs syndrome

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Less Common Symptoms of Jacobs syndrome

Statistics for Jacobs syndrome

Jacobs syndrome: Broader Related Topics

Jacobs syndrome Message Boards

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User Interactive Forums

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Definitions of Jacobs syndrome:

Jacobs syndrome is listed as a "rare disease" by the Office of Rare Diseases (ORD) of the National Institutes of Health (NIH). This means that Jacobs syndrome, or a subtype of Jacobs syndrome, affects less than 200,000 people in the US population.
Source - National Institutes of Health (NIH)

Ophanet, a consortium of European partners, currently defines a condition rare when it affects 1 person per 2,000. They list Jacobs syndrome as a "rare disease".
Source - Orphanet


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