Does Size Really Matter?

A brief history of penis size studies In 1942, prompted by the "clinical need" "for more thorough knowledge of normal variation in the size of male genitalia," William A. Schonfeld and Gilbert W. Beebe, performed the first widely-known penis size survey. In 54 men between the ages of 20 and 25, they measured the mean erect penis length as 5.13". This estimate appears inaccurate, given the small data set.

The classic penis size study is "Sexual Behaviour in the Human Male" due to Alfred C. Kinsey, et al (1948), which had a sample size of 3,500 subjects. In this study, each participant was given a stamped postcard against which he would hold his erect penis, mark its length, and drop the postcard in the mail. As such, the participants never even handled a ruler. In this study, Kinsey found the average erect size to be 6.2".    ...more

Penis size is of great concern to many men. Some consider having a large penis a mark of masculinity; others are concerned that their penis is too small to satisfy their sexual partners. These insecurities have led to many myths about penis size, and the creation of a whole industry devoted to penis enlargement.     ...more


Does the size of the male penis, in terms of length or width, make a difference in female sexual satisfaction?       ...more

Facts about the male genitals

  • Two-thirds of a manís sexual system is inside his body, not on the outside.
  • Each testis has about 250 separate chambers.
  • Each sperm takes between 60 and 72 days to develop.
  • Sperm production occurs only at about four degrees below normal body temperature. A higher temperature not only prevents sperm production, but kills sperm in storage.
  • The smallest functioning penis in medical history was just over one centimeter long.
  • Most erect penises are 14 Ė 16 cm long.
  • Penis size has no direct relationship to either the ability to reproduce or give sexual satisfaction.
  • Between 150 and 400 million sperm are ejaculated on orgasm.
  • Most men require a rest period between orgasms Ė this can last anything from a few minutes to a few weeks.
  • During orgasm, a manís heartbeat and breathing rate can increase to as much as 2,5 times their normal levels.


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