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

Cambridge University Press

The Cambridge University Press is a publisher given a Royal Charter by Henry VIII in 1534, and one of the two privileged presses. It published its first book in 1584, making it the longest-established printing house in the world. It is both an academic publishing house, and the printer for official documents for the University of Cambridge.

Authors published by CUP have included John Milton, William Harvey, Isaac Newton and Stephen Hawking. It currently produces around 200 journals and 2000 books per year.

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Last updated: 02-25-2005 02:31:29