HSA | FSA CARDS ARE NOW ACCEPTED

Last reviewed: May 12, 2026 Last updated: May 12, 2026

Written by: Jay Hastings , CEO of PlexusDx

Jay Hastings is the CEO of PlexusDx, a precision health company focused on genetic testing, blood biomarker insights, and personalized wellness recommendations. He has more than 20 years of experience across healthcare innovation, genomics, laboratory operations, healthcare investing, and strategic finance. His work has included scaling healthcare startups, leading CLIA lab integrations, and helping expand consumer access to precision health tools.

Medically reviewed by: Jayden Lee, PharmD, EMBA

Jayden Lee, PharmD, EMBA, is the PlexusDx Medical Science Liaison with a PharmD and MBA specializing in pharmacogenomics and clinical product development, with a proven ability to bridge the gap between genomic research and practical patient outcomes. Dr. Lee has more than 10 years of professional experience in clinical pharmacy, academia, and research.

Luteinizing Hormone: Do fertility challenges or menstrual irregularities affect you?

What role does luteinizing hormone (LH) play in your reproductive health? We will examine how LH affects reproductive health as a crucial hormone and what happens when its levels become imbalanced affecting fertility and menstrual cycle regularity.

The pituitary gland produces luteinizing hormone (LH) which serves as an essential component of reproductive function.

LH controls ovulation and menstrual cycle regulation in women while stimulating testosterone production in the testes of men which supports sperm production. Healthcare providers may suggest an LH test when patients experience fertility problems, menstrual irregularities, menopausal symptoms, low sperm counts or reduced libido to evaluate their hormonal balance and reproductive health.

During the menstrual cycle in women, LH levels undergo changes and reach their highest point immediately before ovulation happens. Post-menopause, LH levels tend to rise. Conversely, men typically have stable LH levels. LH levels can be affected by multiple factors and elevated levels are commonly observed in individuals with polycystic ovary syndrome (PCOS), testicular damage, and certain genetic disorders. Several conditions including pituitary disorders and marijuana use alongside anorexia and rare genetic conditions may result in decreased LH levels. Genetic components account for 70% of the variations in LH levels. The LHB gene produces a hormone component and its variants have a strong impact on LH levels. Genetic testing shows possible LH level predispositions yet the existing genetic model for LH lacks sufficient scientific backing. More research is needed to verify definitive connections between genetic variants and LH levels.

PlexusDx Precision Health & Wellness tests provide meaningful insights for anyone who wants to explore their reproductive and sexual health more thoroughly. Personalized health decisions become possible through the analysis of genetic markers related to reproductive hormones such as LH by these tests. A proper understanding of luteinizing hormone's function in reproductive health becomes essential when addressing fertility problems alongside menstrual disorders and related conditions. PlexusDx's genetic testing services help people learn about their genetic risks and take action to improve their reproductive and sexual health. The Precision Health & Wellness tests from PlexusDx are available through PlexusDx.com as well as Amazon and Walmart for managing your reproductive health today. Knowledge enables you to make decisions that support your reproductive and general health well-being.

Medical and Editorial Standards

Medical review process: This article was reviewed for medical accuracy, scientific clarity, evidence alignment, and appropriate discussion of genetics, medications, supplements, biomarkers, and health-related claims.

Sources and evidence: PlexusDx educational content is developed using peer-reviewed research, clinical literature, reputable medical references, and, where applicable, public health or regulatory guidance. References are included at the end of the article when scientific, medical, or health-related claims are discussed.

Commercial transparency: PlexusDx offers genetic testing, blood biomarker testing, personalized supplement recommendations, and related precision wellness services. Product mentions are intended to help readers understand available options and should not be interpreted as medical advice.

Important disclaimer: PlexusDx educational content is for informational purposes only and should not be used as a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider before making decisions about medications, supplements, genetic testing, lab testing, or health-related care.