|MadSci Network: Medicine|
Well Andrew, talk about world record requests! There is a relatively good website on questions such as yours. This is http://www.sexualrecords.com . 1) Seminal volume: Human males produce approximately 0.4 ml of seminal plasma each day of abstinance. The average ejaculate measured in 1300 volunteers is 3.2 +/- 1.4 ml as reported by Dr. Aquiles Sombrero in The Journal of Fertility and Sterility. Maximal volumes of 10-11 ml have been recorded. As abstinance continues, seminal volume will be resorbed by the male reproductive tract. This insures that the semen is of good quality at ejaculation. There is really no definitive way to answer the question of how much semen can be ejaculated in a lifetime. 2) According to the web site listed above, Sean Stewart of the UK was the youngest male (12 years) to father (1998)a child. The age a first ejaculation is a tough question to answer. Usually it is assumed that puberty is required for the maturation of the accessory organs of the male reproductive system. As these organs/glands require testosterone for their proper function. However, very young babies do have erections and often masturbate by rubbing the penis on blankets or sheets. It is not likely that these events ever lead to an ejaculation. 3) According to www.sexualrecords.com, the longest penis on record is 14 inches as recorded by Dr. David Reuben and reported in the book "Everything You Always Wanted to Know About Sex", 1969. The longest penis medically verified is 13.5 inches in length and 6.25 inches in diameter as reported in the early 20th century by Dr. Robert L. Dickinson. In the reports by Kinsey and also by Masters and Johnson, maximum penis lenghts of 9.5 - 12 inches were reported. 4) The human testis averages 4 cm in length and 2.5 cm in diameter. The average mass is 10-14 grams. There are disease states such as elephantiasis, which is caused by a blockage of lymph fluid drainage by parasitic worms. A man in Africa was afflicted with this disease and had a scrotal weight of 154 lbs and diameter of 24 inches. The weight of the penis is much tougher to estimate as this is an organ which traps large quantities of blood to achieve erection, but allows that blood to flow out during periods of flaccidity, so the weight varies with sexual excitment. I hope this satisfies your curiosity David S. Mallory, Ph.D. Associate Professor of Biological Sciences Marshall University Huntington, WV..USA
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