GnRH medications manage reproductive and gynecological problems (Verified Market Reports 2025, Yang et al. 2021). For cancer treatment, these medications are given as long-acting injections (Swayzer & Gerriets 2023). GnRH medications pause these changes to allow for bone growth to attain final adult height align psychosocial development with physical changes (Sharma & Daley 2025, Mendle et al. 2007, Lahlou et al. 2000). The most established use for GnRH medication is treating central precocious puberty (CPP) where puberty begins before 8 in girls and 9 in boys (Sharma & Daley 2025, Lahlou et al. 2000). Normal follicle-stimulating hormone (FSH) levels vary based on your age and sex organs. Again, any disruption or issue in this hormone release chain causes a lack of sex hormones. In males, the hormone inhibin B, which cells in the testes release, blocks FSH secretion as part of the feedback loop. Cleveland Clinic’s health articles are based on evidence-backed information and review by medical professionals to ensure accuracy, reliability and up-to-date clinical standards. While many factors can contribute to infertility, your FSH levels could be one of them. If your child is entering puberty earlier or later than expected, contact their provider. If you’re experiencing symptoms of hypogonadism, contact your healthcare provider. FSH blood tests can help determine the reason for a low sperm count. The hormone then travels to your pituitary gland at the base of your brain. The information should not be considered complete and should not be used in place of a visit, phone or telemedicine call, consultation or advice of your physician or other healthcare provider. Discuss this information with your own physician or healthcare provider to determine what is right for you. Libido is upstream, it is multi-layered, and kisspeptin is a compelling reminder that the most important parts of human hormone physiology happen long before a number appears on a lab report. Hypogonadism is the broader term for insufficient sex hormone production. Regular monitoring of hormone levels, bone density, and cardiovascular health keeps the long-term picture clear and manageable. GnRH medications lower estrogen to shrink these abnormal growths and reduce pain (Swayzer & Gerriets 2023). GnRH medications provide a constant dose that is higher than the natural pulses which desensitizes this pathway, decreasing estrogen and testosterone (Lahlou et al. 2000, Swayzer & Gerriets 2023). Low levels of one or both of these hormones can indicate an issue with gonadotropin-releasing hormone levels. However, gonadotropin-releasing hormone levels are considered naturally low in children and rise during puberty.4
