Estrade: Side Effects and Cancer Risks in Women's Health - Obstetrics and Gynecology

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Dear Doctor, on October 13th, I visited the obstetrics and gynecology department and reported that my menstrual bleeding lasted for 7 days and the blood was black.
The doctor mentioned that they would help regulate my menstrual cycle and prescribed Estrade 2mg to take one tablet daily.
Is it normal to feel a bit uncomfortable in my stomach after taking it? Additionally, does Estrade increase the risk of developing cancer?

Xiang, 20~29 year old female. Ask Date: 2020/10/15

Dr. Cai Yonglong reply Obstetrics and Gynecology


If estradiol is used for menstrual regulation at a specific dosage for a period of time (approximately 3-6 months), there should be no concerns regarding cancer.
It can be taken alongside gastric medication.

Reply Date: 2020/10/15

More Info


Estrade, which contains estradiol, is a form of estrogen used in hormone therapy to regulate menstrual cycles and address various hormonal imbalances in women. It is important to understand both the potential side effects and the associated cancer risks when using this medication.

First, regarding the side effects, it is not uncommon for patients to experience gastrointestinal discomfort when starting hormone therapy, including Estrade. This can manifest as nausea, bloating, or a general feeling of unease in the stomach. If the discomfort persists or worsens, it is advisable to consult your healthcare provider. They may recommend taking the medication with food or possibly prescribing an additional medication to help alleviate gastrointestinal symptoms.

As for the concern about cancer risks, particularly breast cancer, the relationship between estrogen therapy and cancer is complex. Current medical guidelines suggest that short-term use of estradiol, such as for regulating menstrual cycles over a period of 3 to 6 months, does not significantly increase the risk of developing cancer. However, long-term use of estrogen, especially in combination with progestin, has been associated with an increased risk of breast cancer, particularly in women who have other risk factors such as a family history of breast cancer.

In your case, since you mentioned that your menstrual blood was black and you were prescribed Estrade to help regulate your cycle, it is likely that your healthcare provider is taking a cautious approach to manage your symptoms. The black color of menstrual blood can sometimes indicate older blood that has taken longer to exit the uterus, which can occur during irregular cycles. Estrade may help normalize your menstrual flow and improve the overall health of your endometrial lining.

It is also important to consider individual risk factors when evaluating the safety of hormone therapy. If you have a family history of breast cancer, it is crucial to discuss this with your healthcare provider. They may recommend more frequent screenings or alternative treatment options that carry a lower risk profile.

In summary, while Estrade can cause some gastrointestinal discomfort, this is generally not a cause for alarm. The risk of cancer associated with its use is relatively low for short-term therapy, but individual risk factors must be taken into account. Regular monitoring and open communication with your healthcare provider are essential to ensure that your treatment plan is safe and effective. If you have any further concerns or experience significant side effects, do not hesitate to reach out to your doctor for guidance.

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