rs2223841

A SNP on chromosome X. Its most notable genotype is C;C: less likely to go bald

Gene
None listed
Location
Chr X67,350,329 (GRCh38)
Highest magnitude
2.1Worth knowing
Tested on
23andMe, AncestryDNA, FamilyTreeDNA
Minor allele frequency
30%

Genotypes

Plus strand, as in 23andMe and AncestryDNA files.

  1. T;TBadmore likely to go bald before age 40Minor · 1.262% of people
  2. C;CMost notableGoodless likely to go baldWorth knowing · 2.132% of people

SNPedia records rs2223841 on the minus strand: (A;A), (G;G). Magnitude rates how notable a genotype is from 0 to 10, not how risky it is.

Frequency

Share of each genotype in 7 HapMap populations.

  • AverageT;T 62% C;C 32%
  • European ancestry (Utah)T;T 69% C;C 11%
  • Han Chinese (Beijing)T;T 100% C;C 0%
  • Japanese (Tokyo)T;T 100% C;C 0%
  • Yoruba (Nigeria)T;T 0% C;C 100%
  • Luhya (Kenya)T;T 2% C;C 94%
  • Mexican ancestry (Los Angeles)T;T 84% C;C 7%
  • TuscanT;T 77% C;C 14%

Conditions, medicines and genes

Notes

From SNPedia

Notes

male-pattern baldness. Full text available. *G less likely to go bald before age 40 *A more likely to go bald before age 40

T;T

more likely to go bald before age 40

C;C

less likely to experience baldness before age 40

Source and license

Adapted from rs2223841 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 Its entries can be incomplete, out of date or wrong, and nothing here is a diagnosis or medical advice.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.