Abnormal Menstrual Flow: Causes and Concerns

Menstrual blood volume issues?

Is it normal to have very light bleeding during my menstrual cycle after stopping medication for vaginitis one day before my period? On the 27th, I stopped the medication, and my period started on the 28th with only light spotting and no significant flow until the 29th, where I barely filled a single pad.
I also had sexual intercourse that month.

Winnie, 30~39 year old female. Ask Date: 2020/11/29

Dr. Wu Xianghui reply Obstetrics and Gynecology

1.
Vaginal infections can cause abnormal discharge, itching, fever, bleeding, and lower abdominal pain, which are among the most common symptoms in women.
The causes are varied, and treatment should be accompanied by comprehensive health education.
It is recommended to consult a gynecologist for evaluation in an outpatient setting.
2.
For pregnancy concerns, please perform a home pregnancy test or consult a gynecologist for evaluation "4 weeks after sexual intercourse."

Reply Date: 2020/11/29

More Info

Abnormal menstrual flow can be a source of concern for many individuals, particularly when it deviates from what is considered normal for them. Based on your description, it seems that you have experienced a significant change in your menstrual cycle, which may be influenced by various factors, including medications, hormonal changes, and sexual activity.

Firstly, it is important to understand what constitutes a normal menstrual cycle. A typical menstrual cycle lasts between 21 to 35 days, with menstrual bleeding lasting anywhere from 2 to 7 days. The amount of blood loss can vary widely among individuals, but on average, a person may lose about 30 to 80 milliliters of blood during their period.
In your case, you mentioned that you were taking medication for vaginal inflammation and that you stopped taking it just before your menstrual period started. Medications, especially those that affect hormonal levels, can significantly impact menstrual flow. For instance, some treatments can lead to lighter periods or even missed periods altogether. If the medication you were using had hormonal components, it could explain the changes you are experiencing.

Additionally, you noted that you had sexual intercourse during the month. Sexual activity can also influence menstrual flow, particularly if it leads to changes in hormonal levels or if there is any physical trauma to the vaginal area. However, it is essential to differentiate between normal variations in menstrual flow and potential issues that may require medical attention.

The fact that you experienced only minimal bleeding (less than what would fill a sanitary pad) could be classified as light menstrual flow or hypomenorrhea. This condition can occur for several reasons, including hormonal imbalances, stress, significant weight changes, or underlying health conditions such as polycystic ovary syndrome (PCOS) or thyroid disorders.
If you are concerned about the changes in your menstrual cycle, especially if this is a new occurrence for you, it is advisable to consult with a healthcare provider. They may recommend a pelvic examination, blood tests to check hormone levels, or an ultrasound to assess your reproductive organs. These evaluations can help identify any underlying conditions that may be contributing to your abnormal menstrual flow.

In summary, while occasional changes in menstrual flow can be normal, persistent abnormalities warrant further investigation. Given your recent use of medication and the changes in your menstrual cycle, it is essential to monitor your symptoms closely. If you experience any additional symptoms, such as severe pain, unusual discharge, or if your menstrual irregularities continue, seeking medical advice is crucial. Your healthcare provider can offer personalized guidance and treatment options based on your specific situation.

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