What causes irregular menstruation after taking emergency contraceptive pills?

Many female friends have taken emergency contraceptive pills, which have many side effects, the most common of which is irregular menstruation. So what happens if you take emergency contraceptive pills and have irregular menstruation? Next, this article will introduce to you the relevant content about what causes irregular menstruation after taking emergency contraceptive pills. Friends who want to know more about this knowledge can take a look! Please see the detailed introduction below.

Whether menstruation is regular and normal is very important for women, because menstruation is closely related to women's health, but there are many factors that can affect menstruation. For example, taking emergency contraceptive pills can cause irregular menstruation. Many women do not understand this, and are often nervous when they experience irregular menstruation after taking birth control pills. So why does irregular menstruation occur after taking emergency contraceptive pills?

The contraceptive success rate of emergency contraceptive pills is 98% if taken within 72 hours after intercourse. Emergency contraceptive pills can cause changes in the next menstruation due to their effects of inhibiting and delaying ovulation and suppressing the endometrium.

Emergency contraceptive pills achieve the purpose of contraception by inhibiting female ovulation and preventing fertilization. Through the action of drugs, the fertilized egg can be prevented from implanting in the endometrium and directly expelled from the body, thereby achieving the purpose of contraception. It should be noted that frequent use of emergency contraceptive pills can cause endocrine disorders in women, resulting in irregular menstruation, which is specifically manifested in the following aspects:

1. Early menstrual cycle: Female friends may experience a sudden temporary increase in hormone levels in the blood due to temporary medication, which then decreases and causes withdrawal bleeding, which often manifests as early menstruation.

2. Delayed menstrual cycle: Emergency contraceptive pills will inhibit and delay female ovulation, preventing the fertilized egg from implanting in the endometrium, thereby causing delayed menstruation. Relevant research data show that about 8% of women will experience delayed menstruation after taking emergency contraceptive pills. If the menstruation is delayed for more than half a month, they need to go to the hospital for examination and treatment.

It can be seen from this that long-term use of contraceptives has a great impact on women's health. I hope that this can attract the attention of female friends. For women who do not plan to become pregnant, they can choose other methods of contraception to avoid adverse effects on their health due to long-term use of contraceptives.

The above is an introduction to why taking emergency contraceptive pills causes irregular menstruation. I believe that after reading the above introduction, you will be very clear about the reasons why taking emergency contraceptive pills causes irregular menstruation. In fact, it is normal to have irregular menstruation after taking emergency contraceptive pills. Generally, it will gradually return to normal after stopping the medication. If menstruation is delayed for a long time, you should go to the hospital for examination.