Very similar to XXX in females. The incidence is again about 1 in 1000. They may have slightly reduced intellectual ability (10-20 IQ points), and a tendency for aggressive and criminal behaviour. Most cases are completely unnoticed.
XYY Males
Dr Tom Leach MBChB DCH EMCert(ACEM) currently works as a GP Registrar and an Emergency Department CMO in Australia. He is also a Clinical Associate Lecturer at the Australian National University. After graduating from his medical degree at the University of Manchester in 2011, Tom completed his Foundation Training at Bolton Royal Hospital, before moving to Australia in 2013. He started almostadoctor whilst a third year medical student in 2009. Read full bio
