Is Breakthrough Bleeding After Missing Pills Considered Menstruation? - Obstetrics and Gynecology

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Is bleeding due to forgetting to take medication considered menstruation?


I regularly take Qlaira.
My last menstrual period (LMP) was on June 3, and I took my first pill on June 8, continuing for nine days.
However, on June 20, I experienced unexpected bleeding and realized I had missed four pills, so I immediately took two pills to catch up.
The bleeding has not stopped and feels like my period (with blood clots).
I currently have ten pills left.
Should I continue taking them or stop? Does this count as my menstrual period? When should I expect my next period, and when do you recommend I start the new pack?

Dou, 30~39 year old female. Ask Date: 2021/06/21

Dr. Cai Yonglong reply Obstetrics and Gynecology


If it's not menstruation, you must take the missed pill as soon as you remember and then continue with your regular schedule.
You should complete the pack as originally intended.
If you have any questions, please consult a gynecologist.

Reply Date: 2021/06/21

More Info


Breakthrough bleeding, especially after missing doses of birth control pills, can be a confusing experience for many individuals. In your case, it appears that you missed four pills and subsequently experienced bleeding that resembles your menstrual period. This situation raises several important points regarding the nature of breakthrough bleeding and its distinction from a regular menstrual period.

First, breakthrough bleeding is defined as unexpected bleeding that occurs between menstrual periods while on hormonal contraceptives, such as birth control pills. It is often a result of hormonal fluctuations, which can be triggered by missed doses of the medication. When you miss pills, your hormone levels can drop, leading to withdrawal bleeding, which may feel similar to a menstrual period but is not classified as one.

In your specific situation, since you missed four pills and then experienced significant bleeding, it is likely that this bleeding is a form of withdrawal bleeding rather than a true menstrual period. The presence of blood clots and the volume of bleeding can be concerning, and it is important to monitor your symptoms. If the bleeding is heavy or accompanied by severe pain, it would be advisable to consult a healthcare provider.

Regarding whether to continue taking your remaining pills, it is generally recommended to continue taking your birth control as scheduled, even if you are experiencing breakthrough bleeding. This helps maintain consistent hormone levels and can prevent further irregular bleeding. However, if you feel uncomfortable or if the bleeding does not subside, you should reach out to your healthcare provider for personalized advice.

As for when your next period might occur, it can be unpredictable after experiencing breakthrough bleeding. Typically, if you continue taking your pills as directed, you should expect to have a withdrawal bleed during the placebo week or the week you are not taking active pills. If you are concerned about your cycle or the bleeding pattern, it is best to discuss this with your healthcare provider, who can provide guidance based on your specific situation.

In summary, the bleeding you are experiencing after missing pills is likely breakthrough bleeding rather than a menstrual period. Continue taking your pills, monitor your symptoms, and consult your healthcare provider if you have any concerns or if the bleeding persists. It’s essential to maintain open communication with your healthcare provider regarding any changes in your menstrual cycle or side effects from your birth control method.

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