What Is a Prolactin Test? A prolactin (PRL) blood test measures how much of a hormone called prolactin you have in your blood. The hormone is made in your pituitary gland, which is located just below ...

Prolactin is a hormone produced by the pituitary gland. High levels can affect sexual and reproductive health. They may result from medication use, health conditions, or prolactinomas. Prolactin plays ...

In 1929 Scientist Karl Ehrhardt of Germany published photographs of a female monkey holding a young guinea pig in a maternal manner. This foster mother had been injected with a crude extract from ...

Prolactin is a hormone involved in milk production in mammals. Levels typically increase during pregnancy. High prolactin levels outside pregnancy may indicate an underlying health problem. Prolactin ...