File:Penis circum.svgįrequency plot of LifeStyles circumference data. Percentile plot of LifeStyles length data. The mean penis size is slightly greater than the median size.įrequency graph of LifeStyles length data. The typical girth or circumference is approximately 12.3 cm (4.85 in) when fully erect. While results vary across studies, the consensus is that the mean human penis is approximately 12.9–15 cm (5.1–5.9 in) in length with a 95% confidence interval of (10.7 cm, 19.1 cm) (or, equivalently, 4.23 in, 7.53 in). Some clinicians measure the penis by stretching the flaccid penis as far as comfortably possible. At least one Brazilian doctor resorted to injecting penises with drugs to induce erection, which gave more consistent results. This may be difficult to achieve in a clinical setting. Problems Ī penis must be completely erect in order to obtain an accurate measurement. It is variously quoted as an average of three measurements: just below the glans penis, in the middle of the shaft, and at the base. Penis girth is the measurement of the circumference of the completely erect penis. Results are inaccurate if the measurement is taken along the underside of the penis, or if the subject is seated or prone. The penis is measured along the top, from the base to the tip. The length can be measured with the subject standing and the penis held parallel to the floor.
This is to account for what may be natural variability in size due to factors such as arousal level, time of day, room temperature, frequency of sexual activity, and unreliability of the measurement methods. The measurements are then to be averaged together. To get the most accurate measurements for an individual's penis size, it has been recommended that several measurements be taken at different times, preferably with different erections on different days. 5.2 Environmental influence on penis size.4.4 Penis size and female genital response.4.2 Modern perceptions and sexual preference.Contrary to popular belief, there is no scientific relation between penis size and race. The human penis is both longer and thicker than that of any other primate both in absolute terms and in relative size to the rest of the body. When compared to other primates, including large primates such as the gorilla, the male human genitalia are remarkably large. Penis sizes has led to an industry devoted to penis enlargement. Human penis size refers to the length and width of human male genitalia. Template:Pp-semi-indef File:Penis Comparison.jpgĬomparison of two circumcised human penises, erect (on left) and flaccid (on right).
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