目前的地球人满为患,人口压力为人们所关注,千百种避孕方法也就应运而生。其实,避孕并非现代人的发明,追寻一下人类文明的发端,可以发现人类避孕史源远流长。在数千年前,人们对于生育的机理已有了许多认识,在避孕和节育问题上,已探寻到种种方法。记载在埃及医书中的一贴避孕处方,可以说是人类最早的避孕方法。这一处方是将鳄鱼粪和糊状物质相混,做成条状,放入阴道,它具有吸收精液及阻止精液进入子宫的作用。这一方法,效果如何不得而知。由于鳄鱼粪便比较粗糙且容易变 At present, the Earth is overcrowded and the population pressure is of concern. Thousands of contraceptive methods have also emerged. In fact, contraception is not an invention of modern people. Looking for the beginning of human civilization, we can find that the history of human contraception has a long history. Many thousands of years ago, people knew a lot about the mechanism of fertility. Various methods have been explored on contraception and birth control issues. A prescription for contraceptives recorded in Egyptian medical books can be said to be the earliest human contraceptive method. This prescription is a mixture of crocodile excrement and pasty material, made of strips, into the vagina, it has to absorb semen and prevent sperm from entering the uterus. How effective is this method? Because crocodile excrement is rough and easy to change