Working Principle Contraception
Contraception is basically negate the meeting between the egg with sperm. There are three ways to achieve this goal, whether working alone or together. The first is to find out the egg(ovulation), the second resist the entry of sperm into female genital tract up to the ovum and the third is to deter nidasi. The first example is a contraception steroid, either pills, injections, or implants.
The second example consists of condoms, vaginal cup (servical cap), spermicides, and tubal ligation and vas deferens. Especially applied to men is interrupted coitus and vasectomy, where the second way, the sperm was never achieve female genital tract.
A third example is IUD. Some ways of contraception works by more than one mechanism, such as contraception steroids.It not only suppress ovulation but also hinder the increase of sperm into the uterine cavity by making the thick cervical mucus that is a plug that can not be breached by the sperm. It also disrupt the physiological endometrium that interfere nidasi if fertilization does occur. Progestin-only pill works primarily in two ways that last one.
Contraception Effectiveness
The effectiveness of a method of contraception is its ability to prevent pregnancy. In practice, sometimes it declared with number of failure (pregnancy) in units of time. There are several components of effectiveness, among others:
Theoretical effectiveness is the ability of a method of contraception to prevent pregnancy if a way were used as appropriate in accordance with the prevailing theory.
Practical Effectiveness (usage) is the effectiveness of that seen in reality on the ground after the use of large numbers, includes everything that affects the use, such as faults, termination, negligence, etc. For example, the pill is theoretically have a very high effectiveness, but in reality is lower due to negligence and other.
Program effectiveness is the effectiveness of a way in a program at local, provincial and national. Pills for example, to rural communities is very low effectiveness due to the use of irregular, or even not infrequently a woman does not want to take the pill because of various reasons. In contrast, for urban communities who have low education and high awareness and regard family planning as the need for the pill have a higher effectiveness.
Cost effectiveness is the ratio between a program with way or the expected results in the form of the number of acceptors, number of continue to use, prevention of side effects, the decline in fertility rates, etc.
Admission and Continuity
There are two kinds of acceptance of contraception that initial acceptance and receipt of information. initial acceptance depends on how motivation and persuasion provided by family planning officials. Acceptance Further influenced by many factors such as age, region (urban / rural), education and employment, religion, motivation, customs, and no less important characteristic is the way these family planning. Ideally a way of cl must meet the properties such as safe (fewest side effects), effective (small failure rate), sedrhana, easy to use (do not require medical intervention that is difficult), cheap, easily obtained, does not interfere with intercourse, does not require examination of many re-examination, and high reversibility.
Unfortunately there is no single ideal way to meet the requirements as mentioned above. One ideal way for someone not necessary ideal for another person, therefore, a candidate acceptor must weigh between losses and gains a manner that will be taken.
