Human penis size

"Penis length" and "Small penis" redirect here. For differences in penis length among non-human species, see Penis §:In different animals. For the medical term, see Micropenis.

Measurement of the human penis

Diagram showing how to measure the length and circumference of an erect human penis

Human penises vary in size on a number of measures, including length and circumference when flaccid and erect. Besides the natural variability of human penises in general, there are factors that lead to minor variations in a particular male, such as the level of arousal, time of day, room temperature, anxiety level, sport activity and frequency of sexual activity. Compared to other primates, including large examples such as the gorilla, the human penis is thickest, both in absolute terms and relative to the rest of the body.

Measurements vary, with studies that rely on self-measurement reporting a significantly higher average than those with a health professional measuring. As of 2015, a systematic review of 15,521 men, and the best research to date on the topic, as the subjects were measured by health professionals, rather than self-measured, has concluded that the average length of an erect human penis is 13.12:cm (5.17 inches) long, while the average circumference of an erect human penis is 11.66:cm (4.59 inches). Flaccid penis length can sometimes be a poor predictor of erect length.

Most human penis growth occurs between infancy and the age of five, and between about one year after the onset of puberty and, at latest, approximately 17 years of age.

A statistically significant correlation between penis size and the size of other body parts has not been found in research. Some environmental factors in addition to genetics, such as the presence of endocrine disruptors, can affect penis growth. An adult penis with an erect length of less than 7:cm (2.8:in), but otherwise formed normally, is referred to in medicine as a micropenis.

Contents

Human penis
3 months ago

Human penis ... The human penis is an external male intromittent organ that additionally serves as the urinal duct. The main parts are the root (radix); the body (corpus);...

Penis enlargement
4 months ago

Penis enlargement ... Penis enlargement, or male enhancement, is any technique aimed to increase the size of a human penis. Some methods aim to increase total length, others...

Micropenis
3 months ago

Micropenis ... small penis. A common criterion is a dorsal (measured on top) erect penile length of at least 2.5 standard deviations smaller than the mean human penis size...

Penis reduction
2 months ago

Penis reduction ... Penis reduction or penis reduction surgery refers to efforts or an assortment of techniques intended to decrease the girth or length of the human penis...

Glans penis
4 months ago

Glans penis ... structure at the end of the human penis, and is anatomically homologous to the clitoral glans of the human female. The glans penis may be smooth, spiny, elongated...

Human vaginal size
3 months ago

Human vaginal size ... been done into the dimensions of the human vagina, but it has not been as intensively researched as penis size. A 1996 study by Pendergrass et al., using...

Penis
3 months ago

Penis ... significantly smaller (in body size) than a gorilla, has a penis size about double that of the gorilla. In comparison, the human penis is larger than that of...

Napoleon's penis
2 months ago

Napoleon's penis ... Napoleon's penis was allegedly amputated in an autopsy shortly after Napoleon's death in 1821. Since then it has passed through several owners, including...

Hirsuties coronae glandis
3 months ago

Hirsuties coronae glandis ... ridge of the glans of the human penis. They are a form of acral angiofibromas. They are a normal anatomical variation in humans and are sometimes described...

Foreskin
3 months ago

Foreskin ... vessels, neurons, skin, and mucous membrane part of the penis that covers and protects the glans penis and the urinary meatus. The foreskin is mobile, fairly...

Frenulum of prepuce of penis
2 months ago
Baculum
4 months ago
Jonah Falcon
3 months ago
Erection
3 months ago
John Holmes (actor)
4 months ago
Big Dick
2 months ago
Human sperm competition
3 weeks ago
Small penis humiliation
2 months ago
Icelandic Phallological Museum
4 months ago
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