A contraception—commonly known as birth control—is a method or device used to prevent pregnancy. It works by interfering with the process of fertilization and implantation of a fertilized egg in the uterus. Contraception methods can be classified into several categories:
1. Hormonal methods: These methods use hormones to prevent ovulation (release of an egg from the ovary) and thicken the cervical mucus to prevent sperm from reaching the egg. Hormonal methods include birth control pills, patches, injections, v玩法inal rings, and hormonal intrauterine devices (IUDs).
2. Barrier methods: These methods create a physical barrier between the sperm and the egg, preventing their contact and fertilization. Barrier methods include male and female condoms, diaphr玩法ms, and cervical caps.
3. Intrauterine devices (IUDs): These are small, T-shaped devices inserted into the uterus to prevent fertilization of the egg. IUDs can be hormonal or non-hormonal, and they provide long-term contraception.
4. Sterilization: This permanent method involves either tubal ligation (for females) or vasectomy (for males) to block the fallopian tubes or vas deferens, respectively, thereby preventing the passage of eggs or sperm.
5. Natural methods: These methods rely on tracking fertility signs such as basal body temperature, cervical mucus consistency, and menstrual cycles to determine the fertile period and avoid sexual intercourse during that time.
6. Emergency contraception: Also known as the morning-after pill, emergency contraception is a backup method used after unprotected sex or contraceptive failure to prevent pregnancy. It can be taken within a few days following intercourse.
It's important to note that no contraceptive method is 100% effective, and each has its own advantages and disadvantages. The choice of contraception depends on factors such as effectiveness, ease of use, personal preferences, and health considerations. It is advisable to consult with a healthcare professional to determine the most suitable method based on individual circumstances.
