What Is The Prolactin Test For?
Prolactin (PRL) is a hormone normally present in low amounts in men and non-pregnant women. Its main physiological role is in promoting milk production during breast feeding
In women higher levels inhibit the hormones that trigger ovulation and allow eggs to develop and mature.
In men its exact role is unclear but high levels can cause infertility, low sexual desire & erectile dysfunction.
Interestingly the levels of prolactin are regulated by the neurotransmitters which can also be influenced by moods and depression.
Follicle-stimulating Hormone 
