For everyone out there that likes having sex, but who isn't ready to become parents, chances are you've given a lot of thought to your birth control methods. The condom is perhaps the oldest known form of birth control, in the class along with abstinence and using other sexual methods such as oral sex (which actually comes with a number of other surprising health benefits) to achieve orgasm. However, as technology has evolved we've developed the daily birth control pill, and even the intrauterine device, more commonly referred to as an IUD. However, there is also a birth control shot that some women find useful since it's less expensive than an IUD, and much less of a hassle than daily pills or constantly carrying condoms with them.
Chemical birth control works off of tricking a woman's body into thinking that it's already pregnant. When an egg is fertilized and the signs of pregnancy begin, it shuts down the ovulation so that the body can concentrate on the baby that will be growing inside it. These changes are all begun by altering the levels of hormones in a woman's body. So what modern medicine has done is create a birth control method by which the hormone levels are changed, thus fooling a woman's body into thinking it's already pregnant so that it will stop offering up eggs as targets to sperm. This is essentially what taking daily birth control does, and it's roughly the same way that birth control shots work.
The reason that some women prefer the birth control shot over the birth control pill or patch though is how convenient it is. These shots are done once a month, or once every three months depending on. There are no pills to remember to take, and for all that time the woman has the protection already in her body of the injection. Of course while the injections might even out a woman's periods, making the bleeding lighter and the cramping less severe, the flood of hormones might take some getting used to in some women and it can lead to feelings of emotional extremes along with other side effects. Women who smoke, or who are over the age of 35 are not prime candidates for the birth control shot, and women who can't or shouldn't take hormone pills also shouldn't take the shots.
Of course while the hormone birth control injections might be convenient and cheap there are some safety concerns that have to be remembered. Namely that, like all birth control methods except condoms and abstinence, the hormone injection does nothing at all to stop sexually transmitted diseases. Adverse reactions should be reported to your doctor as soon as you have them.