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**GoodPalmist** Sat Dec 04, 2010 6:45 am

The research on the difference of the 2D:4D ratio between men and women has been discussed in great detail on this forum. I'm wondering if there's any research on the finger segment (phalanx) ratios and the difference between men and women regarding this feature.
If yes, could someone please direct me to the relevant articles / website .

Thanks,
GP

**Martijn (admin)** Sun Dec 05, 2010 1:00 am

Hello GoodPalmist,

Unfortunately studies on the relative seize of the finger phalanges are very rare. And this is probably related to the fact that it is much harder to measure (or judge) the relative seize of the phalanges of any finger than the relative length of a finger.

This is basically the result of the high variability in the number & the position of the interphalangeal creases.

Additionally, some studies have been focussed on the relative BONE LENGTH of the phalanges via radiographic measurements - but that goes probably beyond our possibilities as a hand reading (because we can measure bone length without using radiographic measurement).

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**GoodPalmist** Sun Dec 05, 2010 1:14 am

Thanks Martijn,

The reason I was curious is that I've noticed in many hands of people who have disease and or known mental problems, there seems to be an extra crease on one or more of their fingers. I was wondering if this could be a fertile field for research. Or if science has already investigated the matter.

Well, I guess I'll have to ignore that crease until new research is published.

**Martijn (admin)** Sun Dec 05, 2010 1:32 am

Okay GP, thank you for the specification regarding the finger creases.

As far as I know, the finger creases have not been studied very often by scientists. But regarding that topic... because of the many irregularities that can be seen in the interphalangeal crease, it is quite hard to discriminate the normal variations from the rare variations. And therefore I think that the study of the finger creases might even be more complicated than the study of the palmar lines.

By the way, in this perspective: from the top of my head I can only recommend the book 'Anthropology of Crease Morphogenesis' (1965) by R.S. Bali - see chapter 12 which is titled: 'Phalangeal Flexion Creases', you can read it in the preview version
at: Google books

EDIT: PS. Maybe you can share a few of your ideas/observations with some hand examples featured with a diagnosis? Then we can see what other might can add to that!

**GoodPalmist** Sun Dec 05, 2010 2:29 am

I will certainly add some examples along with the disease condition of the person in days to come. I will look forward to the comments of all experts here.

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