ESR1 rs7259292: Reproductive Traits and Health Insights
The single nucleotide polymorphism rs7259292 is an intronic variant located in the estrogen receptor 1 (ESR1) gene on chromosome 6. Research has evaluated this common genetic marker for potential associations with female reproductive traits, notably the timing of natural menopause and susceptibility to endometriosis. However, current scientific evidence for these associations remains limited and warrants cautious interpretation.
What each genotype means
Typical reproductive timing and baseline risk
You carry two copies of the C allele at rs7259292 in the ESR1 gene. In published genome-wide association studies, this homozygous genotype is associated with a baseline statistical timing of natural menopause and standard population risk for estrogen-sensitive conditions such as endometriosis. Because complex reproductive traits are shaped by hundreds of genetic loci and lifestyle factors, having this genotype alone does not predict personal health outcomes.
Carried by approximately 40% to 45% of individuals globally, making it the most frequent genotype across European, Asian, and Admixed American populations.
Intermediate reproductive trait profile
You carry one copy of the T minor allele and one copy of the C allele at rs7259292. Heterozygous carriers have shown modest statistical variations in the timing of natural menopause and minor shifts in relative risk for estrogen-dependent conditions like endometriosis in reproductive GWAS cohorts. Current evidence remains limited and shows subtle effect sizes, meaning individual reproductive timing cannot be reliably forecasted from this variant alone.
Carried by roughly 40% to 45% of individuals across global populations, consistent with a minor allele frequency near 0.35.
Variant reproductive trait profile
You carry two copies of the T minor allele at this ESR1 locus. Published association studies have linked the T allele with modest shifts in age at natural menopause and small changes in risk for conditions such as endometriosis, though evidence remains limited and effect sizes per allele are very subtle. This finding represents a small population-level statistical trend rather than a clinical diagnosis, and your overall reproductive health is influenced by many other genetic and non-genetic factors.
Carried by approximately 10% to 15% of individuals globally, occurring in roughly 1 in 8 people of European ancestry.
Genetic Location and Molecular Context
The single nucleotide polymorphism rs7259292 represents an exchange of genetic building blocks situated within an intronic region of the ESR1 gene on human chromosome 6. Introns are non-coding sequences that lie between protein-coding exons; while they do not alter the amino acid sequence of the final protein, intronic variants can sometimes act as expression quantitative trait loci (eQTLs) or modify regulatory motifs, splicing patterns, or transcription factor binding. As tracked in global resources such as dbSNP and Ensembl, rs7259292 commonly presents with C and T alleles on the forward genomic strand. Because it sits deep within non-coding sequence, rs7259292 is widely viewed by genomic researchers as either a benign background variant or a tagging marker that reflects broader linkage disequilibrium patterns across the estrogen receptor gene locus.
Biological Role of the ESR1 Gene
The ESR1 gene provides cellular instructions for producing estrogen receptor alpha (ERα), a nuclear hormone receptor and ligand-activated transcription factor fundamental to human physiology. Upon binding estrogen, ERα moves to the cell nucleus where it interacts with specific DNA elements to regulate genes involved in tissue development, cellular proliferation, metabolic balance, and bone density maintenance. Estrogen signaling via ERα plays an indispensable role across the reproductive system, regulating the menstrual cycle, ovarian follicle maturation, endometrial growth, and the timing of reproductive senescence. Dysregulation or altered sensitivity of estrogen pathways has long been implicated in hormone-dependent conditions such as endometriosis, uterine fibroids, and changes in the reproductive lifespan.
Current Scientific Evidence and Reproductive Associations
Scientific inquiries into the ESR1 locus have examined whether common variations correlate with differences in reproductive biology. Specifically, candidate-gene evaluations and broader association studies have assessed rs7259292 for links to the age at natural menopause and the relative risk of developing endometriosis. Endometriosis is an estrogen-responsive condition characterized by endometrial-like tissue growing outside the uterus, and variations in ERα signaling represent plausible biological candidates. Despite this rationale, the evidence supporting a robust, direct statistical association between rs7259292 and these traits remains classified as limited. Many published findings in candidate-gene studies of ESR1 polymorphisms show modest effect sizes, variable replication across distinct ancestral cohorts, or lack genome-wide statistical significance in large-scale meta-analyses.
Population Frequency and Genomic Distribution
Population genomics initiatives, including aggregated sequencing data in gnomAD and the 1000 Genomes Project, demonstrate that rs7259292 is a common polymorphism worldwide. Across combined global datasets, the minor allele displays a frequency of approximately 0.35, meaning that roughly one-third of observed chromosomes carry this variant. Homozygous reference, heterozygous, and homozygous alternative genotypes are all regularly identified in healthy individuals across various continental ancestries, including European, East Asian, South Asian, African, and Admixed American groups. Because the variant is widespread in the general population, its presence is not characteristic of rare, high-penetrance genetic disorders and falls within normal human genomic diversity.
Understanding Your Results: What This Means for You
Discovering your rs7259292 genotype provides an educational glimpse into your genetic architecture, but it has no direct diagnostic utility. Carrying one or two copies of a statistical risk allele does not mean you will develop endometriosis or experience menopause at an atypical age, just as carrying non-risk alleles provides no absolute immunity. Reproductive traits and gynecological conditions are complex, multifactorial processes shaped by hundreds of genetic loci alongside environmental factors, lifestyle, hormonal exposures, and individual medical history. Anyone experiencing chronic pelvic pain, irregular cycles, painful menstruation, or fertility concerns should consult a qualified healthcare provider for clinical evaluation, imaging, and personalized care.
How common is this variant?
The minor allele for rs7259292 occurs at an approximate frequency of 0.35 across global populations, with balanced distributions of homozygous and heterozygous genotypes observed across diverse ancestral groups.
Frequently asked questions
Can testing rs7259292 tell me if I have endometriosis?
No. Genetic testing for rs7259292 cannot diagnose or rule out endometriosis. Endometriosis is a complex disease influenced by many genetic, hormonal, and environmental factors, and clinical diagnosis relies on medical history, physical exams, specialized imaging, or laparoscopic evaluation by a physician.
Does my rs7259292 genotype predict exactly when I will go through menopause?
No. The timing of natural menopause is determined by a complex interplay of overall health, lifestyle factors, and hundreds of independent genetic loci across the genome. An individual intronic variant like rs7259292 has, at most, an undetectable to very small statistical association and cannot forecast your personal menopausal timeline.
Why is the evidence for rs7259292 classified as limited?
The evidence is considered limited because candidate gene associations for this marker have shown mixed results and have not consistently reached strong genome-wide significance in large, diverse cohorts. Further large-scale replication studies are required to confirm whether this specific variant directly affects estrogen receptor activity.
Should I make lifestyle or medical changes based on this variant?
No lifestyle changes, treatments, or medical interventions should be initiated based solely on your rs7259292 genotype. If you have questions about your reproductive health, hormone levels, or gynecological symptoms, discuss them directly with your gynecologist or primary care physician.
Sources & further reading
Educational information only, last refreshed 9/12/2026. Not medical advice — these associations describe population statistics, not individual predictions.
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This variant in the estrogen receptor 1 gene is associated with human reproductive behavior and influences estrogen-responsive gene expression.
This variant in the estrogen receptor 1 gene is associated with an increased risk of endometriosis and may influence cognitive aging.
Estrogen receptor 1 variant associated with altered circulating estradiol levels, follicular maturation, and variability in age at natural menopause.
Variant in estrogen receptor 1 associated with variation in female reproductive timing, including age at menarche and natural menopause onset.
Common polymorphism in estrogen receptor alpha (ESR1) affecting target tissue responsiveness to estrogen, recurrent pregnancy loss risk, and bone-reproductive axis interactions.
Estrogen receptor 1 regulatory variant associated with variation in timing of menarche and bone density response to sex hormones.