Prolactin is a hormone synthesised and secreted by lactotropes in the adenohypophysis (anterior pituitary gland) which is made up of 199 amino acids with a molecular weight of about 23,000 daltons. Prolactin has many effects, the most significant of which are to stimulate the mammary glands to produce milk (i.e. lactation).


... Why get tested?
To determine whether or not your prolactin levels are higher (or occasionally lower) than normal

When to get tested?
When you have symptoms of an elevated prolactin, such as: galactorrhea and/or visual disturbances and headaches, as part of a workup for female and male infertility, and for follow up of low testosterone in men.

Sample required?
A blood sample drawn from a vein in your arm
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{{{caption}}} Prolactin Identifiers Symbol(s) PRL Entrez 5617 ...
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