Chapter 9 Summary: Physical complications: infection and infertility

Pelvic Inflammatory Disease (PID) is an infection that occurs when bacteria from the vagina or cervix move up into the uterus, uterine tubes, or ovaries. Women who undergo an induced abortion later suffer an up to ten per cent higher rate of Pelvic Inflammatory Disease (PID) than the general population.1 PID following a pregnancy termination can be caused by operative injury, retained products of conception, or pre-existing infection.2

Risk factors for PID include previous PID, no previously borne children, previous induced abortion, multiple sex partners, and pre-existing infection.3 Antibiotics are often distributed to women presenting for abortion with pre-existing Chlamydia; however, the effectiveness of this approach is highly debated.4

Adverse effects of PID include chronic pelvic pain, subfertility, infertility, and ectopic pregnancy.5 Infertility is particularly difficult to study, for reasons such as its varying diagnostic criteria and the inability to find appropriate control groups. However, it is generally agreed that women with a history of PID are at significantly increased risk of infertility.6 One study found that subfecundity increased by no less than 620 per cent among women who terminated a pregnancy.7

Finally, PID is the most common cause of ectopic pregnancy.8 Induced abortion can cause ectopic pregnancy through retained products of conception and PID.9

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  • 3. Nielsen IK, Engdahl E, Larsen T. [Pelvic inflammation after induced abortion] Danish. Ugeskr Laeger 1992 September 28; 154(40): pp. 2743-6; Levallois P, Rioux JE. Prophylactic antibiotics for suction curettage abortion: results of a clinical controlled trial. AJOG 1988; 158(1): pp. 100-5; Lawton BA, Rose SB, Bromhead C, Gaitanos LA, MacDonald EJ, Lund KA. High prevalence of mycoplasma genitalium in women presenting for termination of pregnancy. Conception 2008; 77(4): pp. 294-8.
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