Birth Control Pills and Their Impact on Menstrual Cycles - Obstetrics and Gynecology

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Regarding the relationship between contraceptive pills and menstrual regulation?


Hello, for several months now, I have been experiencing menstruation lasting over ten days.
Two weeks ago, I visited a gynecologist, who prescribed me birth control pills and advised me to take them for three months to see how it goes.
That week, my period started, so I began taking the pills.
On the tenth day of my period, I stopped taking them.
During this time, the menstrual flow was indeed much lighter, and by the tenth day, I only had brown discharge, which I thought indicated that my period was coming to an end, so I stopped taking the pills.
However, the next day, my period started again, becoming heavier and redder.
The following day and today, the flow has been quite heavy, with many blood clots.
Now, I am unsure whether I should continue taking the birth control pills.
I asked my doctor, and he said I should continue taking them (and I am currently doing so).
However, I am very concerned that this might be a side effect of the birth control pills.
I am currently living abroad and will be returning to Taiwan in a week.
I hope that the next week won't be like this every day.

Jenny, 20~29 year old female. Ask Date: 2005/06/28

Dr. Li Guanghan reply Obstetrics and Gynecology


Hello: Birth control pills are generally safe when used correctly according to your physician's instructions.
Please continue to take them on schedule.
Sudden discontinuation of the medication will likely result in withdrawal bleeding.
Department of Obstetrics and Gynecology, Hsinchu City Hospital.

Reply Date: 2005/06/28

More Info


Birth control pills, also known as oral contraceptives, are a common method of preventing pregnancy and regulating menstrual cycles. They contain hormones that can alter the natural hormonal fluctuations in a woman's body, leading to various effects on the menstrual cycle. Understanding how these pills work and their potential impact on your menstrual cycle is crucial, especially if you are experiencing prolonged bleeding or other unusual symptoms.

When you start taking birth control pills, your body undergoes a transition as it adjusts to the new hormone levels. This adjustment period can sometimes lead to irregular bleeding or spotting, particularly during the first few months of use. It is not uncommon for women to experience changes in their menstrual flow, including lighter periods, spotting between periods, or even heavier bleeding in some cases. The fact that you experienced a reduction in menstrual flow initially, followed by an increase in bleeding after stopping the pills, could be attributed to your body reacting to the hormonal changes.

In your case, since you mentioned that you had been experiencing prolonged menstruation for over ten days prior to starting the pills, it is possible that the underlying issue causing your extended bleeding is still present. Conditions such as hormonal imbalances, fibroids, or polyps can lead to heavy or prolonged menstrual bleeding, and these issues may not be resolved simply by taking birth control pills.
Your doctor’s recommendation to continue taking the pills is likely based on the understanding that the initial phase of taking oral contraceptives can lead to irregular bleeding as your body adjusts. It is essential to follow your doctor's advice, especially since they have assessed your situation and determined that the benefits of continuing the medication outweigh the potential risks. However, if the bleeding becomes excessively heavy, or if you experience severe pain or other concerning symptoms, it is crucial to seek medical attention promptly.

It is also important to note that while birth control pills can help regulate menstrual cycles and reduce the severity of menstrual symptoms, they are not a one-size-fits-all solution. If you continue to experience irregularities or if your symptoms do not improve after a few months of consistent use, it may be necessary to revisit your healthcare provider for further evaluation. They may suggest alternative forms of contraception or additional tests to determine the underlying cause of your prolonged bleeding.

In summary, while it is common to experience some irregularities in your menstrual cycle when starting birth control pills, it is essential to monitor your symptoms closely. If you find that your bleeding is excessively heavy or accompanied by other concerning symptoms, do not hesitate to reach out to your healthcare provider for further guidance. Your health and well-being should always be the top priority, and open communication with your doctor is key to managing your reproductive health effectively.

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