Birth Control OverviewMedical Author:
Omnia M Samra, MD
Medical Editor:
Bryan D Cowan, MD
Medical Editor:
Francisco Talavera, PharmD, PhD
Medical Editor:
Lee P Shulman, MD
Birth Control IntroductionThe practice of birth control or preventing pregnancy is as old as human existence. For centuries, humans have relied upon their imagination to avoid pregnancy.
Today, the voluntary control of fertility is of paramount importance to modern society. From a global perspective, countries currently face the crisis of rapid growth of the human population that has begun to threaten human survival. According to the Population Reference Bureau's 2003 World Population Data Sheet, the world's current growth rate is 1.3%. Based on this growth rate, the population would double in 53.8 years. The less developed world's natural increase rate (births minus deaths, without migration) is 1.6%; therefore, population in these countries would double in 43.8 years. See Population Reference Bureau's 2003 World Population Data Sheet for more information. The United Nations lists a growth rate of 2.41% for the least developed countries, which would imply that at the current rate, populations in these nations would double in 29 years. See the United Nations Population Database. Keep in mind that doubling time cannot be used to project future population size because it assumes a constant growth rate over decades when growth rates are constantly changing. Nevertheless, these figures do provide a picture of how fast the population is growing at present. For the individual woman, the effective ability to control when and whether she becomes pregnant affects her ability to achieve her own goals and contribute to her sense of well-being. A woman’s choice of birth control method involves factors such as how easy it is to use, safety, risks, cost, and personal considerations. This overview discusses the main methods of contraception (birth control) used in the United States and their advantages and disadvantages. |
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Birth Control
Ectopic Pregnancy Overview
An ectopic pregnancy is a pregnancy that develops outside
a woman's uterus (womb). This happens when the fertilized egg from the ovary
does not implant itself normally in the uterus. Instead, the egg develops
somewhere else in the abdomen. The products of this conception are abnormal and cannot develop into fetuses.
- The most common place that ectopic pregnancy occurs
is in one of the fallopian tubes (a so-called tubal pregnancy).
These are the tubes that transport the egg from the ovary to the uterus.
Ectopic pregnancies also can be found on the outside of the uterus, on the
ovaries, or attached to the bowel.
- The most serious complication of an ectopic pregnancy is intra-abdominal hemorrhage (severe bleeding). In the case of a tubal pregnancy, for example, as the products of conception continue to gr...
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Contraception »
The practice of contraception is as old as human existence.
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