Oophorectomy is the surgical removal of the ovaries of a female animal. In the case of non-human animals, this is also called spaying. It is a form of sterilization.
The removal of the ovaries together with the Fallopian tubes is called salpingo-oophorectomy. Oophorectomy and salpingo-oophorectomy are not common forms of birth control in humans; more usual is tubal ligation, in which the Fallopian tubes are blocked but the ovaries remain intact.
In humans, oophorectomy is most usually performed together with a hysterectomy - the removal of the uterus. Its use in a hysterectomy when there are no other health problems is somewhat controversial.
In animals, spaying involves an invasive removal of the ovaries, but rarely has major complications; the superstition that it causes weight gain is not based on fact. Spaying is especially important for certain animals that require the ovum to be released at a certain interval (called estrus or "heat"), such as cats and dogs. If the cell is not released during these animal's heat, it can cause severe medical problems that can be averted by spaying or partnering the animal with a male.
Oophorectomy is sometimes referred to as castration, but that term is most often used to mean the removal of a male animal's testicles.
See also
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Seventh century)
(6th century - 7th century - 8th century - other centuries)
Events
- The religion of Islam starts in Arabia, the Qur'an is revealed, and Arabs spread Islam into Syria, Iraq, Persia, Egypt, North Africa and Central Asia.
- Sutton Hoo ship burial, East Anglia (modern England)
- Xuan Zang (aka Hsuan-Tsang) travelled from China to India, before returning to Chang An in China to translate Buddhist scriptures.
- End of sporadic Buddhist rule in the Sindh.
- Serbs entered their present territory early in the 7th century AD, settling in six distinct tribal delimitations.
- Teotihuacan is sacked and burnt.
- The religion of Shugendo evolves from Buddhism, Taoism, Shinto and other influences in the mountains of Japan.
- The Bulgars arrive in the Balkans.
- Arab traders penetrate the area of Lake Chad.
Significant persons
Inventions, discoveries, introductions
Decades and years
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Last updated: 02-07-2005 15:56:41