Prolactin is secreted by the pituitary gland and plays a key role in lactation and reproductive health.
Diagnostic Value: Elevated prolactin (hyperprolactinemia) may result from pituitary tumors, hypothyroidism, or certain medications.
Clinical Importance: Testing helps diagnose infertility, irregular menstruation, and unexplained breast milk production (galactorrhea).
Symptom Correlation: Patients may experience headaches, vision changes, or menstrual disruption.
Prolactin testing is crucial in assessing pituitary health and hormonal causes of reproductive dysfunction.