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CDC Article-US Medical Eligibility Criteria for Contraceptive Use, 2010

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Vol. 59 / RR-4 Recommendations and Reports 71<br />

Appendix H<br />

Classifications <strong>for</strong> Fertility Awareness–Based Methods<br />

Fertility awareness–based (FAB) methods of family planning<br />

involve identifying the fertile days of the menstrual cycle,<br />

whether by observing fertility signs such as cervical secretions<br />

and basal body temperature or by monitoring cycle days (Box).<br />

FAB methods can be used in combination with abstinence or<br />

barrier methods during the fertile time. If barrier methods are<br />

used, refer to Appendix G.<br />

No medical conditions become worse because of use of FAB<br />

methods. In general, FAB methods can be used without concern<br />

<strong>for</strong> health effects to persons who choose them. However,<br />

a number of conditions make their use more complex. The<br />

existence of these conditions suggests that 1) use of these<br />

methods should be delayed until the condition is corrected or<br />

resolved or 2) persons using FAB methods will require special<br />

counseling, and a more highly trained provider is generally<br />

necessary to ensure correct use.<br />

Women with conditions that make pregnancy an unacceptable<br />

risk should be advised that FAB methods might not be<br />

appropriate <strong>for</strong> them because of the relatively higher typical-use<br />

failure rates of these methods. FAB methods do not protect<br />

against sexually transmitted infections (STIs) or human immunodeficiency<br />

virus (HIV).<br />

Box. Definitions <strong>for</strong> terms associated with fertility awareness–<br />

based methods<br />

• Symptoms-based methods: FAB methods based on<br />

observation of fertility signs (e.g., cervical secretions, basal<br />

body temperature) such as the Cervical Mucus Method,<br />

the Symptothermal Method, and the TwoDay Method.<br />

• Calendar-based methods: FAB methods based on calendar<br />

calculations such as the Calendar Rhythm Method<br />

and the Standard Days Method.<br />

• Acccept (A): There is no medical reason to deny the particular<br />

FAB method to a woman in this circumstance.<br />

• Caution (C): The method is normally provided in a<br />

routine setting but with extra preparation and precautions.<br />

For FAB methods, this usually means that special<br />

counselling might be needed to ensure correct use of the<br />

method by a woman in this circumstance.<br />

• Delay (D): <strong>Use</strong> of this method should be delayed until the<br />

condition is evaluated or corrected. Alternative temporary<br />

methods of contraception should be offered.<br />

TABLE. Fertility awareness–based methods,* † including symptoms-based and calendar-based methods<br />

Condition<br />

Symptom-based<br />

method<br />

Personal Characteristics and Reproductive History<br />

Category<br />

Calendar-based<br />

method<br />

Clarifications/Evidence/Comments<br />

Pregnancy Not applicable Clarification: FAB methods are not relevant during pregnancy.<br />

Life stage<br />

a. Postmenarche C C<br />

b. Perimenopause C C<br />

Clarification: Menstrual irregularities are common in postmenarche and perimenopause<br />

and might complicate the use of FAB methods.<br />

Breastfeeding<br />

Comment: <strong>Use</strong> of FAB methods when breastfeeding might be less effective than<br />

when not breastfeeding.<br />

a.

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