Irregular Menstrual Cycles and Hormonal Treatment Concerns - Obstetrics and Gynecology

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Menstrual issues


Hello Doctor: My menstrual cycle has always been irregular; previously, I would only get my period every 2 to 3 months, and I often experienced dysmenorrhea.
Recently, my cycle has become more regular, but the flow is so light that I only need to use panty liners for a day, and the duration is quite long (7-14 days) with dark-colored blood.
I visited a gynecologist at the end of June and had an ultrasound, which showed no abnormalities.
However, for the past few months, I have only experienced a small amount of dark blood.
I would like to know what this situation might indicate and if any further tests are necessary.
Additionally, I previously had a breast ultrasound that detected benign tumors (fibroadenomas and cysts), so I have been hesitant to take hormonal medications.
Will menstrual regulation medications or contraceptives affect these tumors? (P.S.
I have not had any sexual experience to date.)

yan, 20~29 year old female. Ask Date: 2018/09/03

Dr. Lin Manying reply Obstetrics and Gynecology


Hello Ms.
Yan: Regarding your question, (1) if the ultrasound shows no structural issues, it is likely a functional problem (related to ovulation).
Please consult an obstetrician-gynecologist for treatment.
(2) Not necessarily.
The Hualien Hospital of the Ministry of Health and Welfare cares about your health.

Reply Date: 2018/09/03

More Info


Irregular menstrual cycles can be a source of concern for many women, and your symptoms suggest that there may be underlying hormonal imbalances or other factors at play. It’s important to understand the potential causes of your irregular cycles, the implications of your symptoms, and the role of hormonal treatments.

Firstly, irregular menstrual cycles can be caused by a variety of factors, including hormonal imbalances, stress, significant weight changes, excessive exercise, or underlying medical conditions such as polycystic ovary syndrome (PCOS) or thyroid disorders. The fact that your periods were previously spaced out by months and are now more regular but with very light flow and prolonged duration could indicate a change in your hormonal levels. The dark color of your menstrual blood may also suggest older blood, which is not uncommon, especially if the flow is light and prolonged.

Given that you have already had an ultrasound that showed no abnormalities, it may be beneficial to consider further hormonal evaluations. Tests such as serum hormone levels (including estrogen, progesterone, and thyroid hormones) can provide insight into your hormonal status. Additionally, a complete blood count (CBC) can help rule out anemia, which can sometimes accompany heavy menstrual bleeding or prolonged periods.

Regarding your concerns about hormonal treatments, such as birth control pills or other medications to regulate your menstrual cycle, it is understandable to be cautious, especially with a history of benign breast tumors like fibroadenomas and cysts. Generally, hormonal contraceptives can be safe for women with benign breast conditions, but it is crucial to discuss this with your healthcare provider. They can assess your individual risk factors and determine the best course of action. Some studies suggest that hormonal contraceptives may even help reduce the risk of developing breast cysts and fibrocystic changes, but this varies from person to person.

If you are hesitant about hormonal treatments, there are non-hormonal options available as well. Lifestyle modifications, such as maintaining a healthy weight, managing stress through relaxation techniques, and regular exercise, can positively influence menstrual regularity. Additionally, certain supplements, like vitamin D and omega-3 fatty acids, may help regulate menstrual cycles and alleviate symptoms of dysmenorrhea (painful periods).

In summary, your irregular menstrual cycles and associated symptoms warrant further evaluation to determine the underlying cause. While hormonal treatments can be effective in regulating menstrual cycles, it is essential to have a thorough discussion with your healthcare provider about the risks and benefits, especially considering your history of benign breast tumors. Regular follow-ups and open communication with your doctor will be key in managing your menstrual health effectively. If you experience any new symptoms, such as significant changes in your menstrual pattern, severe pain, or any unusual discharge, it is crucial to seek medical attention promptly.

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