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

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Abnormal bleeding


Hello, doctor.
A few days ago, I had food poisoning with vomiting, diarrhea, fever, and headache.
I haven't eaten anything, but on the 27th day of my menstrual cycle, I started experiencing spotting that doesn't resemble my usual period.
Could this be caused by not eating anything for the past few days? My menstrual cycle has always been regular and normal.

Karo, 20~29 year old female. Ask Date: 2021/03/11

Dr. Wu Xianghui reply Obstetrics and Gynecology


Abnormal bleeding and irregular menstrual cycles can have various underlying causes.
It is recommended to consult a gynecologist for evaluation in an outpatient setting.

Reply Date: 2021/03/11

More Info


Abnormal bleeding can be a source of significant concern for many women, and understanding its causes is essential for addressing any underlying health issues. In your case, the recent episode of point-like bleeding on the 27th day of your menstrual cycle, following a bout of gastrointestinal distress (nausea, vomiting, diarrhea, fever, and headache), raises several considerations.

Firstly, it is important to note that the menstrual cycle can be influenced by various factors, including stress, illness, hormonal fluctuations, and lifestyle changes. The gastrointestinal symptoms you experienced could have contributed to the abnormal bleeding. When the body undergoes stress—whether from physical illness, emotional distress, or significant lifestyle changes—hormonal balance can be disrupted. This disruption may lead to irregularities in the menstrual cycle, including spotting or breakthrough bleeding.

In your case, the timing of the bleeding coinciding with your menstrual cycle suggests that it could be related to hormonal changes. The body may have reacted to the stress of being ill, leading to fluctuations in estrogen and progesterone levels. Spotting can occur when the uterine lining sheds slightly, which may not be enough to constitute a full menstrual period. This phenomenon is often referred to as "anovulatory bleeding," where the body does not ovulate, leading to irregular shedding of the endometrial lining.

Moreover, if you have a history of regular menstrual cycles, this sudden change could be alarming. However, it is not uncommon for women to experience occasional irregularities, especially after episodes of illness. The body is resilient, and often, these irregularities resolve on their own as the body returns to its normal state.

It is also worth considering other potential causes of abnormal bleeding. For instance, if you have recently started or stopped any medications, including hormonal contraceptives, this could affect your cycle. Additionally, if there are any underlying conditions such as polycystic ovary syndrome (PCOS), thyroid disorders, or uterine abnormalities, these could also contribute to changes in bleeding patterns.

Given that your menstrual cycle has been regular until now, it would be prudent to monitor your symptoms closely. If the abnormal bleeding persists or if you experience additional symptoms such as severe pain, heavy bleeding, or any other concerning signs, it would be advisable to consult a healthcare provider. They may recommend further evaluation, including blood tests to check hormone levels, a pelvic ultrasound to assess the uterus and ovaries, or a Pap smear if appropriate.

In summary, while the recent episode of abnormal bleeding may be linked to the stress of illness and subsequent hormonal fluctuations, it is essential to remain vigilant. Keeping track of your menstrual cycle and any accompanying symptoms will provide valuable information for your healthcare provider should you need to seek further evaluation. Remember, your health is paramount, and addressing any concerns with a qualified professional is always the best course of action.

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