What is a potential side effect of using a cervical cap?

Using a cervical cap can lead to irritation as a potential side effect. This irritation may occur due to the cap's direct contact with the vaginal walls or cervix, which can cause friction or an allergic reaction to the materials used in the cap. Furthermore, if the cap is not fitted correctly, it can exacerbate discomfort or irritation.

In contrast, the other options do not typically relate to the use of a cervical cap. For instance, increased libido is not a recognized side effect associated with this contraceptive method. Weight gain is generally not linked to the cervical cap, as it does not contain hormones that could influence weight. Mood swings are often associated with hormonal contraceptives rather than barrier methods like cervical caps, which do not affect hormone levels. Understanding these distinctions helps clarify why irritation is the most relevant side effect in this context.