Patient's question:
How long does taking birth control pills delay menstruation? Does taking birth control pills frequently cause menstrual irregularities?Doctor's answer:
Hello! Generally, after taking emergency contraception, there may be withdrawal bleeding. If the bleeding is heavy, it is equivalent to having a menstrual period. If there is a delay in the menstrual period again, it is important to first rule out the possibility of pregnancy. Occasional use of emergency contraception has little interference on the menstrual cycle, but frequent use can lead to menstrual cycle disorders, such as early or delayed periods, prolonged periods, heavy or prolonged bleeding, or even amenorrhea.