Delayed Menstruation After Taking Hormonal Medications - Obstetrics and Gynecology

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Menstrual induction medication and menstrual cycle issues?


Hello doctor, I had my menstrual period from August 21 to August 25.
After that, I took emergency contraception on September 3, and I experienced some bleeding from September 10 to September 14.
I visited a gynecologist on October 16, and after an ultrasound, the doctor mentioned that my endometrium was still too thin.
The doctor prescribed a three-day course of medication to induce menstruation, indicating that my period should arrive within seven days.
However, as of today (October 27), my period has not yet started.
Is this normal?

Chen, 20~29 year old female. Ask Date: 2021/10/27

Dr. Cao Guotao reply Obstetrics and Gynecology


Hello, wait a few more days to see if it arrives.
If it still doesn't come, I recommend seeing a gynecologist.
Wishing you good health.

Reply Date: 2021/10/27

More Info


Delayed menstruation after taking hormonal medications can be a common concern, especially after using emergency contraceptive pills and other hormonal treatments. Let's break down the situation based on the timeline and medications you've described.

You mentioned that you had your menstrual period from August 21 to August 25, and then you took an emergency contraceptive pill on September 3. Emergency contraceptive pills (ECPs) can cause changes in your menstrual cycle, including delayed periods, irregular bleeding, or even no period at all in some cases. The hormones in these pills can temporarily disrupt your normal hormonal balance, which can lead to variations in your menstrual cycle.

After taking the ECP, you experienced some bleeding from September 10 to September 14, which could be considered a withdrawal bleed rather than a true menstrual period. This is not uncommon after taking hormonal medications, as they can induce bleeding that mimics a period but does not necessarily reflect ovulation or the normal menstrual cycle.

You visited your gynecologist on October 16, and after an ultrasound, the doctor noted that your endometrial lining was still thin. This is important because a thin endometrial lining can indicate that your body may not be producing enough estrogen, which is necessary for a healthy menstrual cycle. The doctor prescribed you medication to induce menstruation, suggesting that you would expect your period within a week after completing the medication.

However, as of October 27, you still have not had your period. It is essential to understand that hormonal medications can take time to regulate your menstrual cycle, and various factors can influence this process, including stress, changes in weight, underlying health conditions, and the effects of the medications themselves.

In your case, the delay in menstruation could be attributed to several factors:
1. Hormonal Disruption: The emergency contraceptive pill and the subsequent hormonal medication can disrupt your normal hormonal cycle, leading to delays.

2. Endometrial Thickness: Since your doctor noted that your endometrial lining was thin, this could be a reason for the delayed menstruation. A thin lining may not support a regular menstrual cycle.

3. Individual Variation: Each person's body reacts differently to hormonal medications. Some may experience a quick return to their normal cycle, while others may take longer.

4. Stress and Lifestyle Factors: Stress, changes in diet, exercise, and other lifestyle factors can also impact your menstrual cycle.

Given that you have not had your period after taking the prescribed medication, it is advisable to follow up with your healthcare provider. They may want to conduct further evaluations, such as blood tests to check hormone levels, to determine if there are any underlying issues that need to be addressed.
In summary, while it can be concerning to experience a delayed period after hormonal treatment, it is not uncommon. However, since you have not had your period after the expected time frame, it is crucial to consult your healthcare provider for further assessment and guidance. They can provide you with the best advice tailored to your specific situation and help ensure that your reproductive health is on track.

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