the Effects of Menstrual Induction Injections: Your Concerns Addressed - Obstetrics and Gynecology

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Issues related to menstrual induction injections?


Hello, my period is 4 days late and I'm approaching the 5th day.
On the first day of my missed period, I received an injection to induce menstruation.
The doctor mentioned that if I were pregnant, it would be too early to detect it.
However, I took a pregnancy test 8 days after intercourse and it showed one line.
I also tested on the day I received the injection, and it was still one line.
Recently, I've been feeling very anxious and stressed while waiting for my period.
Before the injection, I experienced breast tenderness and felt like my period was about to come, but since the injection, my breasts have completely stopped hurting.
What could be the reason for this? Additionally, I still have some discharge...
Today, I noticed a pimple on my chin.
Could this be due to menstrual irregularity? Should I be concerned about pregnancy? Will my period come? Since receiving the injection, I haven't felt any signs that my period is approaching.
The injection was administered near my lower back, and I didn't massage the area for long afterward, so it feels swollen and painful.
Does the medication still have an effect? Should I expect my period to come in a few days? If it doesn't arrive, should I be worried about pregnancy or menstrual irregularity?

Cindy, 20~29 year old female. Ask Date: 2019/05/05

Dr. Huang Jianzhong reply Obstetrics and Gynecology


My period is 4 days late and approaching the 5th day.
On the first day of my missed period, I received an injection to induce menstruation.
The doctor mentioned that if I were pregnant, it would be too early to detect it.
However, I took a pregnancy test 8 days after having sexual intercourse and it showed one line.
I also tested on the day I received the injection, and it also showed one line.
Recently, I have been feeling very anxious and stressed while waiting for my period.
Before the injection, I experienced breast tenderness and felt like my period was about to come, but since receiving the injection, my breasts no longer hurt at all.
What could be the reason for this? Additionally, I still have some discharge.

Answer: This could be a result of the injection.
Today, I noticed a pimple on my chin; could this be related to menstrual irregularities?
Answer: It is possible.
Should I be concerned about pregnancy?
Answer: With a delayed period, it is advisable to consider the possibility of pregnancy.
Will my period come?
Answer: Typically, menstruation should occur about 3-7 days after receiving the injection.
However, since the injection, I have not felt any signs that my period is approaching.
The injection was administered near my lower back, and since I did not massage the area for long after the injection, it is now swollen and painful.
Does the medication still have an effect?
Answer: The medication is still effective.
Should I wait a few more days for my period to arrive? If it does not come, should I be concerned about pregnancy or menstrual irregularities?
Answer: You should be concerned about the possibility of pregnancy.

Reply Date: 2019/05/05

More Info


When it comes to menstrual induction injections, it's understandable to have concerns, especially when experiencing a delay in your menstrual cycle. Let's break down your situation and address your questions.

Firstly, you mentioned that you received an injection to induce menstruation after a four-day delay. The medication used for this purpose typically contains hormones that can help stimulate the lining of the uterus to shed, which is what occurs during a menstrual period. It’s important to note that if you were pregnant at the time of the injection, the hormone levels might not be high enough to detect a pregnancy through a home pregnancy test, especially so early. The fact that you tested negative both before and on the day of the injection suggests that pregnancy is unlikely, but it is not impossible.

The symptoms you experienced prior to the injection, such as breast tenderness and the sensation that your period was about to start, are common premenstrual symptoms. After receiving the injection, the absence of these symptoms, including breast pain, could be attributed to the hormonal changes induced by the injection. Hormonal fluctuations can lead to a variety of symptoms, including changes in breast tenderness and mood.

Regarding the discharge you mentioned, it can be normal to experience changes in vaginal discharge due to hormonal influences, especially after an injection. The presence of discharge does not necessarily indicate pregnancy or a menstrual disorder; it can simply be a response to the hormonal changes in your body.

As for the acne on your chin, hormonal changes can also lead to breakouts. Fluctuations in hormone levels, particularly estrogen and progesterone, can affect your skin and lead to acne, especially in the days leading up to your period.

You expressed concern about whether you should be worried about pregnancy or menstrual irregularities. Given that you have tested negative for pregnancy and received a menstrual induction injection, it is reasonable to expect your period to arrive within a few days following the injection. However, if your period does not arrive within a week or so after the injection, it would be wise to consult your healthcare provider for further evaluation. They may recommend a follow-up pregnancy test or investigate other potential causes for your delayed menstruation.

Regarding the injection site, it is common to experience some soreness or swelling after receiving an injection. If the area is painful and swollen, it might be beneficial to apply a cold compress to reduce inflammation. However, if the pain persists or worsens, or if you notice any signs of infection (such as increased redness, warmth, or discharge), you should contact your healthcare provider.

In summary, while it is normal to feel anxious during this time, the combination of your negative pregnancy tests, the hormonal changes from the injection, and the typical symptoms of premenstrual syndrome suggest that your period may still arrive. If you do not see any signs of menstruation soon, or if you have further concerns about your symptoms, please reach out to your healthcare provider for personalized advice and support. They can provide reassurance and help you navigate any potential issues related to your menstrual health.

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