There are many contraceptive methods for men

　　Contraception can be said to be one of the biggest problems in a couple's 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. Condoms

　　Most men are familiar with this little rubber sleeve. Although small condoms make some people feel "not comfortable enough", they are, after all, the most widely used contraceptive tool. Condoms are sometimes unsafe due to improper use. Moreover, the quality of some domestic brands of condoms is not up to standard, so be careful when choosing. The advantage of this method is that there are almost no side effects for both couples, pregnancy can be safely done at any time, and it can also prevent disease spread. It is the first choice recommended by doctors.

　　Disadvantages: The effective contraceptive rate is about 90%. A small number of men, except themselves or their wives who are allergic to rubber, cannot use it.

　　2. 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%.

　　3. Surgery

　　Currently, there are three types of birth control surgeries available: vasectomy, vas deferens plugging, and non-obstructive vas deferens IUD. The latter two surgeries are based on traditional ligation.

　　Surgery that is always associated with trauma and pain sounds a bit scary. However, the whole process of birth control surgery only takes 20 minutes, no stitches are needed, and the recovery time is only two days. There are almost no scars after the surgery. The minimal trauma and fast recovery are beyond the imagination of many people.

　　Vasectomy: Cutting off the vas deferens, which is the tube that carries sperm, definitely prevents pregnancy. The starting ends of the two vas deferens are located in the scrotum and can be felt from outside the scrotum and pulled into the scrotum. skin Therefore, the doctor only needs to make a small opening in the scrotum as big as a grain of rice and cut off the vas deferens to achieve the contraceptive effect.

　　Many people worry that after cutting off the vas deferens, will there be no semen or much less semen? No. On average, men ejaculate about 2ml of semen each time. Among them, seminal vesicle gland fluid and prostatic fluid account for more than 90% of the semen volume. This part will still be ejaculated. After ligation, the epididymal fluid and sperm, which account for less than 10% of the semen volume, are blocked. Therefore, the amount of semen will not be affected much. When pregnancy is needed, vas deferens anastomosis can be performed, and the recanalization rate can reach more than 90%.

　　Disadvantages: Some men will experience epididymal stasis and discomfort after surgery.

　　Vas deferens occlusion: The difference between this method and ligation is that it is not necessary to cut the vas deferens. Instead, a special material (the main component is carbolic acid) is injected into the vas deferens. The vas deferens is stimulated to form scars and harden, thus losing its channel function.

　　Disadvantages: Since the amount of injected material is not easy to control, some people's vas deferens is blocked for too long, causing needle-like discomfort at the surgical site. This method has been abandoned by the vast majority of clinicians.

　　Non-obstructive vas deferens IUD: Major majors in early August this year media The scientific name of the "male birth control ring" technology that has been reported one after another is the non-obstructive vas deferens IUD. This method is to place a filter made of special material (nylon material) inside the male vas deferens to intercept sperm, thereby achieving contraceptive purposes.

　　When contraception is no longer needed, the filter can be removed and normal reproductive functions restored. One of the benefits of this procedure is the avoidance of epididymal stasis that can occur after traditional ligation surgery. It is currently undergoing phase III clinical verification.