What type of contraception is known as "the patch"?

The transdermal contraceptive patch is a hormonal method of contraception that is applied to the skin. It releases hormones, typically a combination of estrogen and progestin, into the bloodstream to prevent ovulation and alter the uterine lining, thereby reducing the likelihood of pregnancy. The patch is worn for a week at a time, and it's designed to be replaced weekly for three weeks, followed by a patch-free week during which a withdrawal bleed occurs.

This method offers several advantages, such as ease of use and the fact that it does not require daily attention, unlike the oral contraceptive pill. The patch provides a consistent hormonal level, making it a convenient option for many individuals.

In contrast to the patch, the oral contraceptive pill requires daily intake to maintain effectiveness, while an intrauterine device (IUD) is a small device placed inside the uterus and works through different mechanisms to prevent pregnancy. Similarly, a subdermal implant is a rod inserted under the skin that releases hormones over time but is not a patch. Thus, the definitive identifier of "the patch" in the context of contraception most accurately describes the transdermal contraceptive patch.