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Studies show that there seems to be a direct correlation between finger lengths and the amount of the male sex hormone testosterone that a baby is exposed to in the womb.

In women, the two fingers are usually almost equal in length, as measured from the crease nearest the palm to the fingertip. In men, the ring finger tends to be much longer than the index.

Other studies looking at finger length ratio have suggested that, in men, a long ring finger and symmetrical hands are an indication of fertility, and that women are more likely to be fertile if they have a longer index finger. A long ring finger can also indicate the degree to which you may be more assertive than a typical woman.

In some of the articles I've read, it states you should look at your right hand- that's for all of you who seem to see one thing on one hand and another on your opposite hand.