Modern medicine doesn’t recognize interrupted sex contraception as reliable. It is been proven to be ineffective and unsafe. The penis releases a lubricating druid that contain sperm, perhaps even enough for conception. Also, many men have a hard time removing their penis from the woman’s vagina during the high moment of pleasure so controlling the fluid is almost impossible. Using this method is ineffective 30% of the time. For those not used to doing it, the method is ineffective 40% of the time.
One of the biggest disadvantages of this method is that the sexual act must be stopped at a very inopportune moment. Couples are not always successful at this, and it tends to create stress between the couple. It has been shown that couples that regularly use this method of contraception and up developing psychological problems as well. The small pelvis is also effected because of this.
There are a few instances where interrupted sex is done regardless. There are some venereal and infectious diseases they can be transmitted when this method is used for casual sex. There is also a pathogenic bacteria in the lubricant that can be passed to both participants. Continually using this method for a source of contraception is likely to lead to male potency. By interrupting sexual intercourse before the male ejaculates, the prostrate gland is not allowed to completely shrink and a stagnant phenomena that leads to prostatitis can form. When you curb the males ejaculation, it can also burst blood vessels in the penis causing an incomplete erection and uncontrolled ejaculations. It can also lead to mental disorders since the mail has to exercise control over his body instead of allowing it to fully enjoy the pleasure of the sexual experience.
As you can see, interrupted sex is not a good form of contraception. It is not only a disproved method, but can cause the man and/or the couple harm.