Final answer:
Birth control pills may lead to weight gain, bloating, irregular periods, and especially an increased risk of blood clots. Following directions precisely is crucial in minimizing these risks.
Step-by-step explanation:
Oral contraceptives, commonly known as birth control pills, can have potential adverse effects with their use. Among such effects are weight gain and bloating, irregular menstrual periods, and most notably, an increased risk of blood clots. Furthermore, combined pills, which include both estrogen and progesterone, have been associated with a slightly increased risk of blood clots as well as a reduced risk of ovarian and endometrial cancers. Conversely, progesterone-only pills do not increase blood clot risk but may lead to irregular periods. It is critical for individuals using oral contraceptives to follow the directions precisely to successfully prevent pregnancy and minimize side effects.