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Anogenital distance (AGD) is the distance from the midpoint of the anus to the genitalia, the underside of the vagina, the clitoris or the scrotum. It is considered medically significant for a number of reasons, in both humans and other animals, including sex determination and as a marker of endocrine disruptor exposure. [ 1 ]
The anogenital distance is a measurement of the distance from the anus to the genitals. In women, this distance tends to be much smaller than in men. The anus has a relatively high concentration of nerve endings and can be an erogenous zone, which can make anal intercourse pleasurable if performed properly.
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The anogenital distance is a measure of the distance between the midpoint of the anus and the underside of the scrotum or the vagina. Studies show that the human perineum is twice as long in males as in females. [ 9 ]
Sexual swelling, sexual skin, or anogenital tumescence refers to localized engorgement of the anus and vulva region of some female primates that vary in size over the course of the menstrual cycle. [ 1 ] [ 2 ] [ 3 ] Thought to be an honest signal of fertility , [ 4 ] male primates are attracted to these swellings; preferring, and competing for ...
In a review of 264 women diagnosed with anogenital papillary hidradenomas, patients ranged in age from 25 to 82 years (median: 49 years); in 25 cases where the information was available, the tumors had been present for 2–120 months (median: 12 months) with 13 patients reporting their tumor's presence for less than 1 year before diagnosis.
In other words, women with a greater anogenital distance, indicating greater prenatal androgen exposure, had a smaller digit ratio. [78] Ronalds et al. (2002) showed that men who had an above average placental weight and a shorter neonatal crown-heel length had higher 2D:4D ratios in adult life.
the ratio of hip circumference to shoulder circumference varies by biological sex: the average ratio for women is 1:1.03, for men it is 1:1.18. [ 9 ] legs (floor to crotch , which are typically three-and-a-half to four heads long; arms about three heads long; hands are as long as the face.