Biology, asked by anusha2721, 6 months ago

Add a note of two of the the contraceptive techniques used by females.​

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Answered by krrish748876
0

Answer:

Unintended pregnancy is a major women’s health problem. In the United States, the unintended pregnancy rate was 45% in 2011 as compared with 51% in 2008.1,2 Although the rate has declined, it is still unacceptably high given the plethora of safe and effective methods of contraception. The consequences of unscheduled pregnancies include delayed prenatal care; early pregnancy exposure to smoking, drinking, or substance abuse; low birth weight; and decreased chances of breastfeeding after delivery.

Condoms and combined oral contraceptive pills (COCs) remain the most commonly used contraceptives. Guidelines strongly recommend long-acting reversible contraceptive (LARC) methods — intrauterine devices (IUDs) and the progestin-only subdermal implant — as first-line options for most women because of their high efficacy. These LARC methods offer women the advantage of not having to remember to take, apply, or insert their contraceptive (worry-free), and not having to rely on a yearly appointment for refills. The 3-year overall continuation rates for LARC users are significantly higher than for other methods, including combined hormonal contraception.3 This article discusses the available female contraceptive methods, including sterilization and emergency contraception, in terms of efficacy, side effects, convenience, and use in clinical practice.

Contraceptive Use in Clinical Practice

More than 99% of sexually active women have used at least one contraceptive method at some time.4 The choice of contraceptive method is determined by the woman's individual risk factors, age, frequency of sexual activity, number of sexual partners, permanence, and efficacy. (Table 1) shows the effectiveness of the available contraceptives.

Table 1: Effectiveness of Contraceptive Methods

Pregnancies per 100

women in first 12 months

of use

Contraceptive method As commonly used Perfect use

Oral contraceptives

Combined hormonal contraceptives 9 0.3

Progestin-only pills 9 0.3

Transdermal contraceptives

Combined hormonal contraceptives 9 0.3

Vaginal ring

Combined hormonal contraceptives 9 0.3

Injectable contraceptives

Depot medroxyprogesterone acetate 6 0.2

Progestin-only subdermal implant 0.05 0.05

Intrauterine devices

Levonorgestrel IUD 0.2 0.2

Copper IUD 0.8 0.6

Barrier contraceptives

Diaphragm with spermicide 12 6

Cervical cap

Nulliparous women

Parous women

12

24

9

20

Female condoms 21 5

Spermicides 28 18

Contraceptive sponge

Nulliparous women

Parous women

12

24

9

20

Male condoms 18 2

Sterilization

Female sterilization 0.5 0.5

Male sterilization 0.15 0.1

Fertility awareness-based methods

Lactation amenorrhea method 2 0.5

Coitus interruptus 22 4

Symptothermal — 0.4

Ovulation method — 3

Rhythm method — 5

Contraception rate without birth control

No method 85 85

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