Klinefelter syndrome

47 X-X-Y syndrome; XXY syndrome; XXY trisomy; 47,XXY/46,XY; Mosaic syndrome; Poly-X Klinefelter syndrome

Klinefelter syndrome is a genetic condition that occurs in males when they have an extra X chromosome.

Causes

Symptoms

Exams and Tests

Treatment

Support Groups

Possible Complications

When to Contact a Medical Professional