The pill, commonly known as the birth control pill, is a medication taken by women to prevent pregnancy. It contains hormones, usually a combination of estrogen and progestin, which work to inhibit ovulation, thicken cervical mucus, and thin the uterine lining. When taken correctly, it is over 99% effective in preventing pregnancy. In addition to preventing pregnancy, the pill can also regulate menstrual cycles and reduce symptoms of premenstrual syndrome (PMS). Some women may use it to manage conditions like polycystic ovary syndrome (PCOS) or endometriosis. It is important to consult a healthcare provider to determine the best option for individual health needs.