Irregular Bleeding: Is It Ovulation or Something More? - Obstetrics and Gynecology

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Abnormal bleeding


Hello Doctor: My menstrual cycle started on September 28, and I calculated that ovulation would be around October 12.
I began experiencing bleeding around that date, but as of today (October 19), I still have intermittent bleeding, which is both bright red and brown.
Additionally, a few days ago, I suddenly had severe abdominal pain, located just below the navel, which lasted only a few minutes and was just that one time.
I would like to know if this could be more likely related to ovulation bleeding? This is my first time experiencing this, and I'm quite scared...

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

Dr. Huang Jianzhong reply Obstetrics and Gynecology


MC started on September 28, and ovulation is estimated to begin around October 12.
I started experiencing bleeding around that date, but as of today (October 19), I still have intermittent bleeding, both bright red and brown.
Additionally, a few days ago, I suddenly had severe abdominal pain, located just below the navel, which lasted only a few minutes and occurred just that once.
I would like to know if it is more likely to be ovulation bleeding? Answer: Ovulation bleeding is a possibility.

Reply Date: 2018/10/19

More Info


Irregular bleeding can be a source of concern for many women, especially when it occurs outside of the expected menstrual cycle. Based on your description, it seems that you experienced bleeding starting around your ovulation period, which is typically around 14 days before your next expected menstrual cycle. This timing aligns with what is commonly referred to as ovulation bleeding, which can occur in some women due to hormonal fluctuations.

Ovulation bleeding is generally characterized by light spotting that can be pink or brown in color and may last for a few hours to a couple of days. It is caused by a slight drop in estrogen levels that occurs just before ovulation, leading to a small amount of bleeding from the uterine lining. However, the fact that your bleeding has persisted for several days (from October 12 to October 19) and includes both bright red and brown blood raises some questions.

The presence of bright red blood can indicate fresh bleeding, while brown blood typically signifies older blood that has taken longer to exit the body. If this bleeding is accompanied by significant pain, especially if it is sudden and severe, it is essential to consider other potential causes. For instance, conditions such as ovarian cysts, endometriosis, or even ectopic pregnancy can lead to irregular bleeding and abdominal pain.

Given that you mentioned experiencing a sudden sharp pain in your lower abdomen, it is crucial to monitor this symptom closely. While it could be related to ovulation, it could also indicate a more serious issue, especially if the pain recurs or intensifies.
In light of these factors, it is advisable to consult with a healthcare provider. They may recommend a pelvic examination and possibly an ultrasound to assess your ovaries and uterus for any abnormalities. Blood tests may also be conducted to check hormone levels and rule out pregnancy or other conditions.

In summary, while your symptoms could be consistent with ovulation bleeding, the duration and accompanying abdominal pain warrant further evaluation. It is always better to err on the side of caution when it comes to your health. If you continue to experience irregular bleeding or if the pain worsens, please seek medical attention promptly. Your healthcare provider can help determine the underlying cause and provide appropriate treatment or reassurance.

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