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Individual differences |
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Male pregnancy refers to the incubation of one or more embryos or fetuses by male members of any species. In nearly all heterogamous animal species, offspring are ordinarily carried by the female until birth, but in fish of the Syngnathidae family (pipefish and seahorses), males perform this function. By some definitions of male identity, human men have done so in certain instances, and male humans incubating fetuses are a recurring theme in speculative fiction.
In non-human animalsEdit
- Further information: Syngnathidae
Template:Expand section The Syngnathidae family of fish has the unique characteristic where females lay their eggs in a brood pouch on the male's chest, and the male incubates the eggs. Fertilization may take place in the pouch or before implantation in the water. Included in Syngnathidae are seahorses, the pipefish, and the weedy and leafy sea dragons. Syngnathidae is the only family in the animal kingdom to which the term "male pregnancy" has been applied.
Ectopic implantation Edit
Biological human males do not have the anatomy needed for natural embryonic and fetal development. The theoretical issue of male ectopic pregnancy (pregnancy outside the uterine cavity) by implantation in biological males has been addressed by experts in the field of fertility medicine, who stress that the concept of ectopic implantation, while theoretically plausible, has never been attempted and would be difficult to justify – even for women lacking a uterus – owing to the extreme health risks to both the parent and child.
Robert Winston, a pioneer of in-vitro fertilization, told London's Sunday Times that "male pregnancy would certainly be possible" by having an embryo implanted in a man's abdomen – with the placenta attached to an internal organ such as the bowel – and later delivered by Caesarean section. Ectopic implantation of the embryo along the abdominal wall, and resulting placenta growth would, however, be very dangerous and potentially fatal for the host, and is therefore unlikely to be studied in humans. Gillian Lockwood, medical director of Midland Fertility Services, a British fertility clinic, noted that the abdomen is not designed to separate from the placenta during delivery, hence the danger of an ectopic pregnancy. "The question is not 'Can a man do it?'" stated bioethicist Glenn McGee. "It’s ’If a man does have a successful pregnancy, can he survive it?’"
Since 2000, several hoax web sites have appeared on the Internet purporting to describe the world's first pregnant man. While sometimes relying on legitimate scientific claims, in reality, no such experiment has ever been attested. Fertility clinician Cecil Jacobson claimed to have transplanted a fertilized egg from a female baboon to the omentum in the abdominal cavity of a male baboon in the mid-1960s, which then carried the fetus for four months; however, Jacobson did not publish his claims in a scientific journal, and was subsequently convicted on several unrelated counts of fraud for ethical misconduct.
Transgender people Edit
- See also: Trans man
Some trans men (female-to-male transgender people) who interrupt hormone replacement therapy can become pregnant, while still identifying and living as men. This is possible for individuals who still have functioning ovaries and a uterus.
For example, Matt Rice, a transgender man, bore a son named Blake in October 1999  following random sperm donations from three male friends during his relationship with transgender writer Patrick Califia.
Thomas Beatie, another transgender man, has borne three children. He chose to become pregnant because his wife Nancy was infertile, doing so with cryogenic donated sperm and a syringe, at home. He wrote an article about the experience in The Advocate. The Washington Post further broadened the story on March 25 when blogger Emil Steiner called Beatie the first "legally" pregnant man on record, in reference to certain states' and federal legal recognition of Beatie as a man. In 2010, Guinness World Records recognized Beatie as the world's "First Married Man to Give Birth." Beatie gave birth to a girl named Susan Juliette Beatie on June 29, 2008. Barbara Walters announced Beatie's second pregnancy on The View, and Beatie gave birth to a boy named Austin Alexander Beatie on June 9, 2009. Beatie gave birth to his third child, a boy named Jensen James Beatie, on July 25, 2010.
Scott Moore, a transgender man, gave birth to a child on March 9, 2010.
Fetus in fetuEdit
- Main article: Fetus in fetu
Fetus in fetu, though not an actual pregnancy, is an extremely rare condition in which a mass of tissue resembling a fetus forms inside the body. This is a developmental abnormality in which a fertilised egg splits as if to form identical twins, but one half becomes enveloped by the other, and an entire living organ system with torso and limbs can develop inside the host. The abnormality occurs in 1 in 500,000 live births in humans.
The case of Sanju Bhagat, a man from Nagpur, India, attracted attention in 1999 for the length of time (36 years) he had carried his parasitic twin inside his body, and the size of the growth. Since Bhagat had no placenta, the growth had connected directly to his blood supply. 
In popular cultureEdit
- See also: Pregnancy in science fiction
The concept of male pregnancy has been the subject of popular films, generally as a comedic device. The 1978 comedy film Rabbit Test stars Billy Crystal as a young man who inexplicably becomes pregnant instead of his female sex partner. The 1990 BBC television comedy drama Frankenstein's Baby features a Dr. Eva Frankenstein helping a male patient to become the world's first pregnant man. The 1994 science fiction comedy/drama Junior stars Arnold Schwarzenegger as a fertility researcher who experiments on himself; the screenplay was inspired by a 1985 article in Omni magazine.
The concept appears frequently as a comedic gag in movie and television programs. In Monty Python's 1979 film, Life of Brian, there is a political satire scene in which a character demands that any man has a "right to have babies if he wants them," which is ridiculed as impossible. In the BBC science fiction comedy series Red Dwarf, a character becomes pregnant after having sex with a female version of himself in an alternate universe. In an episode of Sliders, the quartet "slides" into an alternate world in which babies develop during their final months in the father because a worldwide disease has kept women from being able to carry children beyond their first trimester.
The possibility of extraterrestrial life having different reproductive sexuality is the basis for many references. In the Star Trek: Enterprise episode "Unexpected", a human male becomes pregnant with the offspring of a female of another species. In the video game The Sims 2 male characters can be impregnated via cheat codes or alien abduction. In the American Dad episode "Deacon Stan, Jesus Man", the boy Steve becomes impregnated after giving the mouth-to-mouth resuscitation to the extraterrestrial Roger, then unwittingly passes it on to his girlfriend via a kiss. In the animated series Futurama the extraterrestrial Kif can be impregnated by a touch. In the SciFi Channel miniseries, Farscape: The Peacekeeper Wars, the extraterrestrial Rygel becomes impregnated with human John and Aeryn's baby.
- Allotransplantation, transplanting of non-native tissue
- Couvade syndrome, a sympathetic condition
- Male lactation
- Male egg
- ↑ 1.0 1.1 Male pregnancy. ScienceDirect.
- ↑ Jones, Adam G., Avise, John C. (2003-10-14). Male Pregnancy. Current Biology 13 (20): R791.
- ↑ includeonly>William Leith. "Pregnant men: hard to stomach?", 'Telegraph', 2008-04-10.
- ↑ 4.0 4.1 4.2 includeonly>Dick Teresi. "How To Get A Man Pregnant", 'The New York Times', 1994-11-27.
- ↑ 5.0 5.1 includeonly>"Babies borne by men 'possible'", 'The Independent', 1999-02-22.
- ↑ 6.0 6.1 Meryl Rothstein. Male Pregnancy: A Dangerous Proposition. Popular Science Magazine.
- ↑ Men can have babies; Study still in infancy though: Expert
- ↑ 8.0 8.1 8.2 A Womb Of His Own. Snopes.com.
- ↑ FTM Transgender. - FAMILY/Hormone guide for FTM, "Question 2" (geocities) last accessed 2008-07-02
- ↑ 10.0 10.1 Labor of Love website.
- ↑ 11.0 11.1 11.2 Thomas Beatie, "Labor of Love: Is society ready for this pregnant husband?", The Advocate, April 8, 2008, p. 24.
- ↑ NNDB Pat Califia http://www.nndb.com/people/573/000118219/
- ↑ 13.0 13.1 Califia-Rice, Patrick Two Dads With a Difference — Neither of Us Was Born Male. Village Voice. URL accessed on 2008-03-22.
- ↑ Thomas Beatie: The First Man to Give Birth? washingtonpost.com OFF/beat blog March 25, 2008
- ↑ "First Married Man to GIve Birth", Guinness World Records 2010 edition, page 110"
- ↑ The Pregnant Man Gives Birth people.com, Originally posted Thursday July 03, 2008 02:55 PM EDT
- ↑ 'Pregnant man' gives birth to baby girl named Susan Juliette Beatie at guardian.co.uk.
- ↑ Pregnant man pregnant for second time. www.meeja.com.au. URL accessed on 2008-10-11.
- ↑ 'Pregnant Man' Gives Birth Again. People Magazine.
- ↑ First known transgender man to give birth delivers third child. perth now.
- ↑ includeonly>"Second pregnant man Scott Moore due to give birth to baby boy", 'Daily Mail', 2010-01-27. [dead link]
- ↑ Chua, JHY, Chui CH, Sai Prasad TR et al. (2005). Fetus-in-fetu in the pelvis. Annals of the Academy of Medicine Singapore 34: 646–649.
- ↑ Grant P, Pearn JH Foetus-in-foetu. Med J Aust. 1969; 1:1016-1020 — source not consulted; cited here following Hoeffel CC, Nguyen KQ, Phan HT, Truong NH, Nguyen TS, Tran TT, Fornes P. Fetus in fetu: a case report and literature review. Pediatrics. 2000 Jun;105(6):1335-44. PMID 10835078 free full text
- ↑ ABC News: A Pregnant Man?. i.abcnews.com. URL accessed on 2008-03-27.
- ↑ Piercy, Marge (1985-11-12). Woman on the Edge of Time, Fawcett.
- ↑ Frankenstein's Baby. BFI.
- ↑ Virgil Wong website. URL accessed on 2008-03-31.
- ↑ Hoax website: POP! The First Human Male Pregnancy. URL accessed on 2008-03-27.
- ↑ Lee Mingwei. Mingwei Refers to hoax as "Male Pregnancy Project, Centre d’Art Santa Monica, Barcelona, Spain"
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