rs925391
A SNP on chromosome X. Its most notable genotype is A;A: unlikely to go bald
- Gene
- None listed
- Location
- Chr X67,120,595 (GRCh38)
- Highest magnitude
- 3.0Important
- Tested on
- 23andMe, AncestryDNA
- Minor allele frequency
- 29%
Genotypes
Plus strand, as in 23andMe and AncestryDNA files.
- G;GBadmore likely to go bald; common
- A;GGoodlower odds of going bald
- A;AMost notableGoodunlikely to go bald
SNPedia records rs925391 on the minus strand: (C;C), (C;T), (T;T). Magnitude rates how notable a genotype is from 0 to 10, not how risky it is.
Frequency
Share of each genotype in 4 HapMap populations.
- AverageG;G 71% A;G 2% A;A 27%
- European ancestry (Utah)G;G 83% A;G 9% A;A 8%
- Han Chinese (Beijing)G;G 100% A;G 0% A;A 0%
- Japanese (Tokyo)G;G 100% A;G 0% A;A 0%
- Yoruba (Nigeria)G;G 0% A;G 0% A;A 100%
Related
Conditions, medicines and genes
Genosets
Genosets combine several genotypes. Twofold checks them in your report.
Notes
From SNPedia
Notes
23andMe seems to consider each A at rs925391 to have lowered men's odds of baldness by 11x. baldness *lowest P value of 2.1×10-12 for rs10521339 *family based rs938059 shows the lowest P value (4.03×10-6) (table 3) *rs6152 (P=6.66×10-10)
Source and license
Adapted from rs925391 on SNPedia, using a snapshot taken October 16, 2026. SNPedia content is shared under CC BY-NC-SA 3.0 US, and this page is shared under the same license.
SNPedia is a community-edited wiki. Its entries can be incomplete, out of date or wrong, and nothing here is a diagnosis or medical advice. Magnitude is a community rating of how interesting a genotype is, not a risk score.