Ancient people used sheep intestines as condoms, which is obviously a little close to modern condoms. The oldest known condom is made of a section of pig intestine, one end of which is sewn tightly with silk thread, and the opening at the other end can be tightened to prevent slippage. The relevant user manual suggests that this kind of condom is difficult to use immediately when needed, because the condom must be soaked in warm milk overnight before it can be used.

2. Strike while the iron is hot

The ancient Greeks believed that water while the iron was hot could also be used as a contraceptive. Although we don't know who invented this method, it is true that there is lead in the hot water. During World War I, the proportion of women working in lead-containing factories was unusually high. Scientific research has found that striking iron can lead to nervous system diseases, renal failure, coma and even death. Its function seems to be similar to mercury.

3, a small amount of mercury

More than 2,000 years ago, women in China added a small amount of mercury to tea or daily food for contraception, which is said to have a good effect. According to modern scientific research, a large dose of mercury can kill people, but a small dose can kill the fetus in the uterus. Mercury can cause menstrual disorders, brain damage, renal failure and infertility in women.

4. Uterine sleeves

Using expensive materials such as gold, silver and ivory for contraception sounds good, but it is actually very cruel. Thousands of years ago, people made "uterine sleeves" according to the shape of women's uterus. Rich people can make them out of gold, silver or ivory, and then wrap them in oil paper or beeswax.

Obviously, all these things sound terrible. This kind of contraceptive is called "the instrument that tortures women" by later generations. Sometimes, these things can even lead to toxic shock in women, emitting all kinds of unpleasant smells and even causing infection, but they have little effect on contraception.

5, lemon diaphragm

In the16th century, most people have realized that dry feces and hard metals are not suitable for female body parts. Many people are inspired by cutting lemon in half and hollowing it out to make a "uterine cap". Maybe a man was the first person to use this contraceptive.

Modern scientific research shows that the acid contained in citrus plants can kill sperm. This method is safer, more convenient and more delicious.

6. Livestock manure

The ancient Egyptians over 3,000 years ago were able to create such outstanding works as pyramids and mummies, so it is not surprising that they found ways to control fertility. It is said that the ancient Egyptians believed that crocodiles, elephants and other animals had mysterious powers, so their feces were also used as contraceptives. In fact, because the feces of these animals are highly acidic, they do have a certain spermicidal effect.

7. Beaver testicles

/kloc-Canadians in the 0 th and 6 th centuries believed that the testicles of small fur animals were the key to contraception. So some women soak beaver's testicles in wine and drink this wine for contraception. Some Canadians grind beaver testicles into fine powder and take them with wine. This method has no side effects. In addition, some people dried beaver testicles and soaked them in wine.

People's Network-Gender Health Care: How Ancient Women Used Contraception (Figure)