Written by Private MD Labs Medical Writing Team • Last Updated: September 8, 2025
Hyperprolactinemia is a hormonal condition characterized by abnormally high levels of prolactin, a hormone produced by the pituitary gland. This condition can affect both men and women, causing various symptoms including irregular menstrual periods, infertility, and unexpected milk production.
This blood test directly measures prolactin hormone levels in the bloodstream. Hyperprolactinemia is characterized by higher-than-normal prolactin levels, often caused by excessive production from the pituitary gland. Elevated prolactin levels on this test serve as a clear diagnostic indicator of the condition.
Since hyperprolactinemia is defined by elevated hormone levels in the blood, a specific blood test measuring prolactin concentration is the primary diagnostic method. This test provides direct evidence of the condition and helps healthcare providers determine appropriate treatment strategies.
Normal prolactin levels vary between men and women, with women typically having slightly higher baseline levels. When prolactin levels are significantly elevated above the normal range, it confirms the diagnosis of hyperprolactinemia. Your healthcare provider will interpret your results in the context of your symptoms and medical history.
The information here is for educational purposes only and is not a substitute for professional medical advice. Always consult with a healthcare provider for diagnosis and treatment.