Abnormal Bleeding: Causes and Concerns for Women - Obstetrics and Gynecology

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Intermenstrual bleeding


Hello, doctor! I'm currently abroad and would feel more at ease seeing a doctor when I return to Taiwan, so I'm seeking your advice here.
(I have health insurance XD) I have tumors on both ovaries, and I have had the larger one removed along with the ovary.
After the surgery, the doctor confirmed that it was a tumor and not a cyst.
Despite this, my menstrual cycle has been very regular, usually with a maximum variation of ±1 day.
However, this month, my period came 8 days early, and after it ended, it returned 5 days later for another 4 days.
During the second occurrence, the flow was heavy for 2 days (it felt heavier than the second day of my normal period), with both brown and red blood and some clots.
I would like to ask if there are cases of ovulatory bleeding that can present with heavy flow, or is it more likely related to the ovarian tumors? Since the end of February, I have been exercising for an hour every day, and my menstrual flow has decreased.
However, I am concerned that if I push myself too hard to keep up with my schedule, it might affect my cycle.
Are there cases where suddenly increasing exercise leads to changes in menstruation?

Lin Qianxia, 30~39 year old female. Ask Date: 2020/05/23

Dr. Wu Xianghui reply Obstetrics and Gynecology


Abnormal bleeding and irregular menstrual cycles can have various underlying causes.
It is recommended to consult a specialist in obstetrics and gynecology for evaluation.

Reply Date: 2020/05/23

More Info


Abnormal bleeding can be a significant concern for many women, and understanding its causes is essential for managing health effectively. Based on your description, it appears that you are experiencing irregular menstrual cycles, including early onset and increased bleeding after a period of regularity. Given your medical history of ovarian tumors, it is crucial to approach this situation with careful consideration.

Firstly, let's address the concept of abnormal bleeding. Abnormal bleeding can manifest in various forms, including intermenstrual bleeding (bleeding between periods), heavy menstrual bleeding (menorrhagia), and postmenopausal bleeding. In your case, the early onset of your period and the subsequent heavy bleeding could be classified as intermenstrual bleeding, which can occur for several reasons.

One common cause of intermenstrual bleeding is ovulation bleeding, which can happen when the ovary releases an egg. This type of bleeding is typically light and lasts for a short duration. However, it is essential to note that while ovulation bleeding can occur, it is usually not characterized by heavy bleeding or the presence of blood clots. Therefore, the significant volume of blood you are experiencing raises concerns that may warrant further investigation.

Given your history of ovarian tumors, it is crucial to consider the possibility that your current symptoms may be related to your previous condition. Tumors can affect hormonal balance, leading to irregularities in the menstrual cycle. Additionally, if the tumors were hormone-secreting, they could contribute to abnormal bleeding patterns. It is also worth noting that the removal of one ovary can impact the hormonal regulation of your menstrual cycle, potentially leading to changes in bleeding patterns.

You mentioned that you have recently increased your physical activity, exercising for an hour daily. While regular exercise is generally beneficial for menstrual health, sudden changes in exercise intensity can sometimes lead to alterations in menstrual cycles. This phenomenon is often referred to as "exercise-induced amenorrhea," where excessive exercise can disrupt the hormonal balance, leading to irregular periods. However, this typically results in lighter periods or missed cycles rather than heavy bleeding.

In your case, the combination of your medical history, the recent changes in your menstrual cycle, and the significant volume of bleeding suggests that it would be prudent to seek medical attention. While it is understandable that you prefer to wait until you return home to consult a doctor, it is essential to monitor your symptoms closely. If the bleeding persists, increases in volume, or is accompanied by other concerning symptoms such as severe pain, dizziness, or fatigue, it would be wise to seek immediate medical attention, regardless of your location.

In summary, while ovulation bleeding can occur, the characteristics of your bleeding—particularly the volume and the presence of blood clots—suggest that it may be related to your ovarian history rather than typical ovulation bleeding. It is crucial to consult with a healthcare provider who can perform the necessary evaluations, including imaging studies and hormonal assessments, to determine the underlying cause of your abnormal bleeding. Your health and well-being are paramount, and addressing these symptoms proactively is essential for your overall health.

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