Following are the diagnostic clue to klinefelters syndrome
1.Tall stature (due to hypogonadism).
2.Lower segment > upper segment of the body. Crown to
pubis length < pubis lo heel
3. Gynaecomastia with loss of secondary sexual characters
4.Phenotypically male with small, firm testis.
5.Mental subnormality.
6.Azoospermia (sterility) wilh elevated levels of plasma and
urinary gonadotropinins
7.Chromatin barr body is present in buccal smear. Chromosal
pattern is 47XXY in klinefelters syndrome
