Digit ratio
Preface: Still haven't narrowed down my exact variation. Suspected polygenetic PAIS. I appear male for the most part. Apparently born with ambiguous genitalia that was surgically altered to appear like a typical male. Infertile. Minimal body hair. Femenine waist hip ratio but also very broad shoulders.
As you may or may not be aware, the ratio between your index finger and your ring fingernis an indicator of fetal androgen exposure. A index finger longer than the ring finger indicates low androgens and visa versa.
https://en.wikipedia.org/wiki/Digit_ratio
Something I noticed a long time ago is that I have a high ratio on one hand my ring finger is distinctly longer and on the other my index finger is just slightly longer. This was before I knew I was intersex, but definitely lined up with how I felt about my gender and sexuality.
If you don't mind taking a glance at your hands and telling me what you see and what your variation is, I would really appriciate it. If I can eventually get a large enough sample size, it would be interesting to compile this into a spread sheet.
I imagine that you will see things like a longer index finger in Klienfelters and a longer ring finger in CAH, but I'm very curious both to see how things line up in general as well as if anybody has 2 different ratios like I do.
Mind you, it is also very possible that an injury or something stunted the growth in one of my fingers.
Posted Jun 11, 2026, 10:29 PM UTC