Side Effects
Nonoxynol-9 has a number of possible side effects. These include irritation, itching, or the sensation of burning of the sex organs (either partner), and in women, urinary tract infections, yeast infection, and bacterial vaginosis. These side effects are uncommon; one study found that only 3-5% of women who try spermicides discontinue use due to side effects.
Concern has been raised over possible increased risk of birth defects in children conceived despite spermicide use, and also in children of women who, not yet aware of their condition, continued spermicide use during early pregnancy. However, a review in 1990 of large studies on spermicides concluded "there appears to be no increased risk of congenital anomalies, altered sex ratio, or early pregnancy loss among spermicide users."
Read more about this topic: Spermicide
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