Gonadotropins

Biomarkers included in this panel:

FSH is a pituitary hormone that signals the ovaries or testes. Its meaning changes with the reason for testing: cycle timing matters in ovarian-reserve testing, symptoms and menstrual history matter around menopause and POI, and semen analysis is cen

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Luteinizing hormone (LH) is the pituitary's signal to the ovaries or testes. In women, its mid-cycle surge triggers ovulation; in men, it drives testosterone production. A high or low LH number does not show whether the signal worked. Interpret i

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Prolactin (PRL) is a hormone produced by the pituitary gland. Normal range: less than 20 ng/mL in men, less than 25 ng/mL in non-pregnant women. Elevated prolactin (hyperprolactinemia) can cause infertility, irregular periods, and galactorrhoea. The

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