- Section 1 Patients and their treatment
- Section 2 Background to medicine
- Section 3 Cell biology
- Section 4 Immunological mechanisms
- Section 5 Principles of clinical oncology
- Section 6 Old age medicine
- Section 7 Pain and palliative care
- Section 8 Infectious diseases
- Section 9 Sexually transmitted diseases
- 9.1 Epidemiology of sexually transmitted infections
- 9.2 Sexual behaviour
- 9.3 Sexual history and examination
- 9.4 Vaginal discharge
- 9.5 Urethritis
- 9.6 Genital ulceration
- 9.7 Anogenital lumps and bumps
- 9.8 Pelvic inflammatory disease
- 9.9 Principles of contraception
- Section 10 Environmental medicine, occupational medicine, and poisoning
- Section 11 Nutrition
- Section 12 Metabolic disorders
- Section 13 Endocrine disorders
- Section 14 Medical disorders in pregnancy
- Section 15 Gastroenterological disorders
- Section 16 Cardiovascular disorders
- Section 17 Critical care medicine
- Section 18 Respiratory disorders
- Section 19 Rheumatological disorders
- Section 20 Disorders of the skeleton
- Section 21 Disorders of the kidney and urinary tract
- Section 22 Haematological disorders
- Section 23 Disorders of the skin
- Section 24 Neurological disorders
- Section 25 Disorders of the eye
- Section 26 Psychiatric and drug-related disorders
- Section 27 Forensic medicine
- Section 28 Sport and exercise medicine
- Section 29 Biochemistry in medicine
- Section 30 Acute medicine
(p. 1626) Principles of contraception
- Chapter:
- (p. 1626) Principles of contraception
- Author(s):
Zara Haider
- DOI:
- 10.1093/med/9780198746690.003.0196
There are many contraceptive methods available (increasing year on year) which can be classified as: hormonal and non-hormonal, longer lasting, and those with a shorter duration of action, reversible and irreversible. No contraceptive method is 100% effective (apart from abstinence) and where there is potential risk of conception due to unprotected sex or an error with a contraceptive regimen, the patient must be informed about methods of emergency (post-coital) contraception, the most effective being the post-coital intrauterine device (PCIUD). Education of the public about the benefits of contraception is vital and must be done in a timely way (e.g. through school sex education, media, and online resources).
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- Section 1 Patients and their treatment
- Section 2 Background to medicine
- Section 3 Cell biology
- Section 4 Immunological mechanisms
- Section 5 Principles of clinical oncology
- Section 6 Old age medicine
- Section 7 Pain and palliative care
- Section 8 Infectious diseases
- Section 9 Sexually transmitted diseases
- 9.1 Epidemiology of sexually transmitted infections
- 9.2 Sexual behaviour
- 9.3 Sexual history and examination
- 9.4 Vaginal discharge
- 9.5 Urethritis
- 9.6 Genital ulceration
- 9.7 Anogenital lumps and bumps
- 9.8 Pelvic inflammatory disease
- 9.9 Principles of contraception
- Section 10 Environmental medicine, occupational medicine, and poisoning
- Section 11 Nutrition
- Section 12 Metabolic disorders
- Section 13 Endocrine disorders
- Section 14 Medical disorders in pregnancy
- Section 15 Gastroenterological disorders
- Section 16 Cardiovascular disorders
- Section 17 Critical care medicine
- Section 18 Respiratory disorders
- Section 19 Rheumatological disorders
- Section 20 Disorders of the skeleton
- Section 21 Disorders of the kidney and urinary tract
- Section 22 Haematological disorders
- Section 23 Disorders of the skin
- Section 24 Neurological disorders
- Section 25 Disorders of the eye
- Section 26 Psychiatric and drug-related disorders
- Section 27 Forensic medicine
- Section 28 Sport and exercise medicine
- Section 29 Biochemistry in medicine
- Section 30 Acute medicine