Contraception

Contraception is the application of scientific methods to temporarily infertile women. Mainly control the three links in the reproductive process: 1. Inhibit sperm and egg production; 2. Prevent sperm and egg from binding; 3. Make the uterine environment unfavorable for sperm capacitation, survival, or improper fertilized egg implantation and development. Common contraceptive methods include: use of contraceptives, condoms, contraceptive films, safe-period contraceptives, in vitro ejaculation contraception, compressed urethral contraception, surgical contraception, and so on.

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