At a Glance
Why Get Tested?
When to Get Tested?
If you are having difficulty getting pregnant or are having irregular menstrual periods (in order to identify or rule out ovarian failure/menopause in women and sperm production failure in men); if your doctor thinks that you have symptoms of a pituitary, ovarian, testicular or hypothalamic disorder; when your doctor suspects that a child has delayed or earlier than expected sexual maturation (or delayed or early growth).
A blood sample taken from a vein in your arm
Test Preparation Needed?
No special preparation is required for the test, but the blood sample should be taken at the start of a woman's cycle (days 1 to 4 if the cycles are regular)