Abnormal Vaginal Bleeding: Causes and Concerns in Women’s Health - Obstetrics and Gynecology

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I noticed a small amount of bright red blood when I wiped away discharge yesterday, and this morning I found that I was bleeding, although the amount is not significant and only appears when I wipe.
The color is bright red, similar to menstrual blood.
Last month, I took medication to induce menstruation, and my period came on the 41st day after taking the medication.
Since then, I have experienced some tenderness in my breasts when pressed, which continues to this day.
I would like to know if this bleeding could be related to the medication I took last month, or if it could be implantation bleeding, ovulation bleeding, or a side effect of emergency contraception.

S, 10~19 year old female. Ask Date: 2018/09/09

Dr. Huang Jianzhong reply Obstetrics and Gynecology


Yesterday, I noticed a small amount of bright red blood when wiping away discharge.
This morning, I found that I was bleeding, though the amount is not significant; it only appears when I wipe.
The color is bright red, similar to menstrual blood.
Last month, I took medication to induce menstruation, and my period came on the 41st day after taking the medication.
Since then, I have experienced some tenderness in my breasts when pressed, which continues to this day.
I would like to know if this bleeding is related to the medication I took last month, or if it could be implantation bleeding, ovulation bleeding, or a side effect of emergency contraception.

Answer: This bleeding is not related to the medication taken last month; it is a side effect of the emergency contraception.

Reply Date: 2018/09/09

More Info


Abnormal vaginal bleeding can be a source of concern for many women, and understanding its potential causes is crucial for proper management and peace of mind. Based on your description, it seems you are experiencing some unusual bleeding after having taken medication to induce your menstrual cycle. Let's explore the possible reasons for your symptoms.

1. Hormonal Fluctuations: Taking medication to induce menstruation, such as Provera (medroxyprogesterone), can lead to hormonal changes in your body. These fluctuations can sometimes result in unexpected bleeding, even after the medication has been stopped. This is because the body may take some time to readjust to its natural hormonal rhythm after the influence of synthetic hormones.

2. Ovulation Bleeding: If your menstrual cycle was irregular prior to taking the medication, it is possible that you are experiencing ovulation bleeding. This type of bleeding occurs around the time of ovulation, which typically happens about 14 days before your next expected period. It is characterized by light spotting that can be pink or brown in color and may last for a few hours to a couple of days. Given that you mentioned the bleeding is light and occurs when wiping, this could be a possibility.

3. Implantation Bleeding: If you are sexually active and there is a chance of pregnancy, the bleeding could also be implantation bleeding. This occurs when a fertilized egg attaches to the lining of the uterus, usually around 6-12 days after conception. Implantation bleeding is typically light and may be pink or brown in color, similar to what you described. However, if you have not had sexual intercourse, this would be less likely.

4. Side Effects of Emergency Contraception: If you have taken emergency contraception (often referred to as the "morning-after pill"), it can also cause irregular bleeding as a side effect. This is due to the high doses of hormones that can disrupt your normal menstrual cycle. If this applies to your situation, it could explain the bleeding you are experiencing.

5. Other Causes: Other potential causes of abnormal bleeding include cervical or uterine issues, such as polyps or fibroids, infections, or even stress and lifestyle changes that can affect your menstrual cycle. Given that you have had breast tenderness, this could also indicate hormonal changes that may be contributing to your symptoms.

In conclusion, while it is possible that the bleeding you are experiencing is related to the medication you took to induce your period, other factors such as ovulation or implantation bleeding, or even side effects from emergency contraception, could also be at play. It is essential to monitor your symptoms closely. If the bleeding persists, becomes heavier, or is accompanied by severe pain or other concerning symptoms, it is advisable to consult a healthcare provider for further evaluation. They may recommend tests such as a pelvic exam, ultrasound, or blood tests to determine the underlying cause of your abnormal bleeding and provide appropriate treatment options.
Remember, your health and well-being are paramount, and seeking professional advice is the best course of action when dealing with any unusual symptoms.

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