A comprehensive inventory of male contraceptive methods

　　Many married men have this experience: their wives are particularly anxious a few days before menstruation. They are always worried about whether there will be problems with contraception this month. If menstruation is a few days late, those days will be like a year, for fear of accidentally getting pregnant. Contraception can be said to be one of the biggest problems in married life. However, most of this burden is currently borne by the weak wife alone. If a man wants to care more about his wife and free her from the worries of contraception, he might as well learn about it male What are the contraceptive methods?

　　1. Drugs
　　　　
　　Drugs are divided into two types: oral drugs and injectable drugs.

　　Gossypol: Gossypol is the representative of oral male birth control pills and the only one that has ever been used for clinical of drugs. Because this chemical extracted from ordinary cotton seeds has a strong inhibitory effect sperm For more than half a century, scientists have been paying attention to the contraceptive effect of gossypol.
　　
　　Disadvantages: It has many side effects. For example, users are prone to symptoms of hypokalemia, paralysis, and temporary loss of working ability. The most serious side effect is that users may lose their fertility. Experts do not recommend its use.
　　
　　Testosterone Eleven Injection: This injection is recommended by the WHO (World Health Organization) and is known as "one injection per month for contraception." However, it is currently undergoing multi-center phase III clinical trials around the world and has not been successfully developed. After men inject this drug, the contraceptive rate of yellow men reaches more than 90%, while that of white men is only about 60%.
　　
　　Disadvantages: The drug does not take effect immediately when injected. Only one injection per month and continuous injection for 3 months can the contraceptive effect appear. The contraceptive rate for yellow people reaches more than 90%.