sterilization

Contraceptives are safe and effective
Currently there are many methods of contraception, but not all contraceptives are good and do not affect the health of women.
Things to know about sterilization in men and women
Sterilization is a method of contraception that provides a sure, lasting effect and is used by many countries around the world.
China has a good way of using the electric field to prevent African swine fever
Chinese scientists plan to conduct a unique experiment in southwest China to prevent the African swine fever.
Louis Pasteur - The father of vaccine has never studied medicine
Having never officially studied medicine, with great contributions, Louis Pasteur is still regarded as a great physician and honored.
Why can women sterilize and still be able to stick?
Sterilization gives a high success rate, but there are some cases where the ear canal itself relapses to pregnancy.
How do doctors sterilize men?
The doctor removes 1-2cm of vas deferens and closes the two ends so that the sperm does not have a way out and drains itself.