Prolactin

Prolactin is a hormone produced in the pituitary gland. It plays a crucial role in the development of mammary glands and milk production after birth. Even outside of pregnancy and breastfeeding, prolactin can be detected in the blood.

Elevated prolactin levels can lead to menstrual cycle disorders, infertility, or milk flow without pregnancy. In men, elevated levels often manifest as potency disorders or reduced sexual drive. Low levels are rare and usually of little significance.