Hypoprolactinemia is a medical condition characterized by abnormally low levels of the hormone prolactin in the blood. Prolactin is primarily produced by the pituitary gland and plays a crucial role in regulating lactation and reproductive functions. Low prolactin levels can lead to issues such as reduced milk production in breastfeeding women and may affect menstrual cycles in women and fertility in both genders. The causes of hypoprolactinemia can vary and may include certain medications, pituitary disorders, or other underlying health conditions. Diagnosis typically involves blood tests to measure prolactin levels, and treatment depends on the underlying cause. Addressing hypoprolactinemia can help restore normal hormonal balance and improve related symptoms.