Article on average penis size study results.

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). The typical girth or circumference is approximately 12.3 cm (4.85 in) when fully erect. The mean penis size is slightly greater than the median size.Basically, the human penis is made up of two parts: the shaft and the glans (also known as the head). The shaft is not a muscle as some have suggested. It is made of three columns of tissue, one of which continues forward to form the glans. These columns are called the Corpus Spongiosus, which forms the underside of the penis and the glans, and the Corpora Cavernosa, which are two chambers of tissue located next to each other on the upper side of the penis.

Size at birth

The average stretched penile length at birth is about 4 cm (1.6 in), and 90% of newborn boys will be between 2.4 and 5.5 cm (0.9 and 2.2 in). Limited growth of the penis occurs between birth and 5 years of age, but very little occurs between 5 years and the onset of puberty. The average size at the beginning of puberty is 6 cm (2.4 in) with adult size reached about 5 years later. W.A. Schonfeld published a penis growth curve in 1943.

Size with aging

Authors of a paper reviewing research on area of penis sizes conclude that "flaccid penile length is just under 4 cm at birth and changes very little until puberty, when there is marked growth."

Age is not believed to negatively correlate with penis size. “Individual research studies have ... suggested that penis size is smaller in studies focusing on older men, but Wylie and Eardley found no overall differences when they collated the results of various studies [over a 60 year period].”

Erect length

Several scientific studies have been performed on the erect length of the adult penis. Studies which have relied on self-measurement, including those from Internet surveys, consistently reported a higher average length than those which used medical or scientific methods to obtain measurements.

The following staff-measured studies are each composed of different subgroups of the human population (i.e. specific age range and/or race; selection of those with sexual medical concerns or self-selection) which could cause a sample bias.

* A study published in the September 1996 Journal of Urology concluded that average erect length was 12.9 cm (5.08 in) (measured by staff). The purpose of the study was to “provide guidelines of penile length and circumference to assist in counseling patients considering penile augmentation.” Erection was pharmacologically induced in 80 physically normal American men (varying ethnicity, average age 54). It was concluded: “Neither patient age nor size of the flaccid penis accurately predicted erectile length.”

* A study published in the December 2000 International Journal of Impotence Research found that average erect penis length in 50 Jewish Caucasian males was 13.6 cm (5.35 in) (measured by staff). Quote: "The aim of this prospective study was to identify clinical and engineering parameters of the flaccid penis for prediction of penile size during erection." Erection was pharmacologically induced in 50 Jewish Caucasian patients who had been evaluated for Erectile dysfunction (average age 47±14y). Patients with penis abnormalities or whose ED could be attributed to more than one psychological origin were omitted from the study.

* A study conducted by LifeStyles Condoms found an average of 14.9 cm (5.9 in) with a standard deviation of 2.1 cm (0.8 in) (measured by staff). The purpose of this study was to ensure properly sized condoms were available. 401 college students volunteered to be measured during 2001 Spring Break in Cancún, Mexico, of which 300 gained an erection to be clinically measured (without pharmacological aid). The 300 effective measurements makes this study double the size of any prior study that uses medical staff to measure penis size (but the sample is more representative of male American college students visiting Cancun, and eager to have their penises measured, than it is of the entire male American population.)

* A review published in 2007 issue of BJU Internetional, have shown that average erect penis length is 14–16 cm and its girth is 12–13 cm. This paper compares results of twelve studies conducted on different populations in several countries.

Erect circumference

*The Cancún LifeStyle study, in which the circumference of the shaft was measured at three points (base, mid-shaft, and just below the head) and then averaged, found an average of 12.63 cm (4.972 inches) with a standard deviation of 1.3 cm (0.5 in).

Similar results exist regarding studies of the circumference of the adult fully erect penis, with the measurement taken mid-shaft. As with length, studies that relied on self-measurement consistently reported a significantly higher average than those with staff measuring.

Flaccid length

One study found the mean flaccid penis length to be 3.5 inches (8.9 cm) (measured by staff). A review of several studies have shown average flaccid length to be 9–10 cm. Length of the flaccid penis does not necessarily correspond to length of the erect penis; some smaller flaccid penises can grow much larger, and some larger flaccid penises cannot grow much larger.

The penis and scrotum can contract involuntarily in reaction to cold temperatures or nervousness, referred to by the slang term "shrinkage", due to action by the cremaster muscle. The same issue affects cyclist and exercise bike users, with prolonged pressure on the perineum from the saddle, and the straining of the exercise causing the penis and scrotum to contract involuntarily which is sometimes referred to as "gym balls" or "saddle balls". An incorrect saddle may ultimately cause erectile dysfunction (see crotch pressure for more information).

Penises that are short when flaccid but more average when erect are colloquially known as growers, where those with greater flaccid lengths that increase little when erect are known as showers.

Flaccid penis length is a poor estimate of erect length, a better estimate is stretched length, that is 12–13 cm, as shown in review by Wylie and Erdley.

Article on average penis size study results.

Every man wants to know if they are average or not,hopping they are not below averages other wise what can they do? The problem is unfortunately there is no definitive answer to this question. Many researches have been done and the average penis size as ranged from 6 inches to 6.5 inches, the question is which study to believe. Durex have been running a online study for many years now and you can see their results by visiting their site..

The study which should be the most accurate is the report done by The Alfred C. Kinsey Institute for sex. The largest sample of 10,000 men were measured and then the results compiled. The results showed the average was 6-6.5 inches in length. Average girth is 5-5.5 inches See graph below:

The size of your penis doesn't have a relationship with anything else. For example a person with big feet does NOT necessarily have a 9 inch penis. Whether you are above or below the average ask yourself does it really matter? If you feel comfortable with the way your penis looks then it is not an issue. If not then you could choose one of the many methods available today,to enlarge your penis.Read our products reviews for more informations.

Were you one of those guys who wouldn't shower after gym class because of embarrassment? You don't have to worry. Most girls get excited when they see a man's penis and of course the bigger it is the more turned on she might get but there are other alternatives to give a women an orgasm if you don't have a big penis. So if your penis is small you can always try satisfying your partner in other ways.

Averages Penis Size Worldwide...

Andromedical carries out a research on the penis size worldwide

Dr Eduardo Gomez de Diego, director of a medical company specialised in andrology, has carried out a detailed research to determine the average penis length worldwide.

Introduction:

In his long professional experience, Dr Gomez de Diego has directly treated more that 1,500 patients in his laboratory.

According to a study published by the Spanish Society of Andrology in the year 2001, the average penis length in the erected state among Spanish males was established at 13.58 cm. This lead Dr Eduardo Gomez de Diego to question the accuracy of this research, since his own experience in his laboratory made him come to the conclusion that the average penis length was rather 14cm.

Hence, Dr Gomez de Diego carried out a widespread research, which took into consideration several studies published by prestigious physicians of different nationalities. He concluded that the average size, according to all studies, is to be established at 14cm, confirming thus the aforementioned research carried out by Dr. Eduardo Gomez de Diego.

The Penis Size Worldwide

Countrys	Average in erection	Average in Flacidity	Source
	12.9 cms. 5 inches.	8.8 cms. 3.4 inches.	Wesseells H., Lue T., McAicnich J.
	14.48 cms. 5.6 inches.	-	Dr. Gunther Hagler, Urólogo.
	13.58 cms. 5.3 inches.	-	Dr. Javier Ruiz Romero Clínica Tres Torres, Barcelona, 2001.
	16 cms. 6.2 inches.	12 cms. 4.7 inches.	Bouchet A., Cuilleret J.
	13 cms. 5.1 inches.	8 cms. 3.1 inches.	Japanese Journal of Sexology
	12.4 +/-1.6 cms. 4.8 inches.	-	Dr. Paulo Palma, Urólogo. Brasil. Carlos da Ros, Claudio Teloken
	15 cms. 5.9 inches.	10 cms. 3.9 inches.	Dr. Jamal Salhi de la Sociedad de Andrología de Italia Dr. Carpenito Ambulatori Especialista en Andrología.
	12.7 cms. 5 inches.	9.5 cms. 3.7 inches.	" Dimensiones peneanas en la población venezolana " Servicio de Urología , Hospital Domingo Luciani .
	14.9 cms. 5.87 inches.	-	Dr. Francisco Ordóñez " Lifestyles Condom Co. In Cancún, México , 2001.
	12.18 +/- 1.7 cms. 4.8 inches.	-	Dr. Spyropoulos E. et coll Hospital Naval de Veteranos, Atenas, 2003.
	10.2 cms. 4 inches.	-	" The Jacobus Survey "
	12.4 +/-1.6 cms. 4.8 inches.	-	Dr. Mohamed Habos. Clínica de Comportamientos y Enfermedades de los Órganos Genitales Masculinos.
	14 cms. 5.5 inches.	-	Dr. Eduardo Pino, Urólogo/ Andrólogo. Clínica Andromex, Santiago de Chile.
	13.9 cms. 5.4 inches.	8.95 cms. 3.5 inches.	Acuña A., Villalba J. & Juan Carlos Villalba. Clínica A. Saio, Bogotá.
	9.6 cms. 3.7 inches.	6.9 cms. 2.7 inches.	Hwancheol Son, Hanjoon LeeJung-Sik Huh, Soo Kim & Jae-Seung Paick.