Lactational amenorrhea
| Lactational amenorrhea | |
|---|---|
| An infant breastfeeding | |
| Background | |
| Type | Behavioral | 
| First use | Prehistory; Ecological method 1971 | 
| Failure rates (First six months postpartum) | |
| Perfect use | <2% | 
| Typical use | ? | 
| Usage | |
| Duration effect | Up to 6 months (longer in some cases, with greater failure rate) | 
| Reversibility | Yes | 
| User reminders | Adherence to protocols | 
| Clinic review | None | 
| Advantages and disadvantages | |
| STI protection | No | 
| Periods | Absent | 
| Benefits | No external drugs or clinic visits required | 
Lactational amenorrhea, also called postpartum infertility, is the temporary postnatal infertility that occurs when a woman is amenorrheic (not menstruating) and fully breastfeeding.