Are Visible Blood Vessels a Side Effect of Taking Birth Control Pills? - Cardiology

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Vascular prominence?


Hello Doctor: I started taking Diane contraceptive pills recently, which contain Cyproterone 2mg and Ethinylestradiol 0.035mg.
After a few days, I noticed that my blood vessels have become more prominent all over my body (in my neck, arms, feet, calves, thighs, groin, and upper chest).
I also have many red microvessels appearing near my ankles.
I would like to know if this issue is related to taking the contraceptive pills.
Occasionally, I also experience cramping pain in my legs.

Nìmíng, 30~39 year old female. Ask Date: 2022/01/16

Dr. Huang Yinghe reply Cardiology


Hello: Hormonal contraceptives can increase the risk of thromboembolic diseases.
However, a definitive diagnosis cannot be made based solely on your description without an examination, as allergies are also a possibility.
Additionally, these symptoms may not necessarily be related to the medication.
It is advisable to discontinue the medication and seek medical evaluation.

Reply Date: 2022/01/16

More Info


Visible blood vessels, or the appearance of prominent veins, can indeed be a side effect of taking birth control pills, such as the one you mentioned, which contains cyproterone and ethinylestradiol. These medications can influence the body’s hormonal balance, which in turn can affect blood circulation and vascular health.

When you start taking hormonal contraceptives, your body undergoes various changes due to the introduction of synthetic hormones. Estrogen, one of the hormones in many birth control pills, can cause blood vessels to dilate, leading to increased blood flow and sometimes making veins more visible. This is particularly noticeable in areas where the skin is thinner, such as the arms, legs, and neck.
Additionally, hormonal changes can lead to fluid retention, which may also contribute to the prominence of blood vessels. The increased blood volume and changes in vascular tone can make veins appear larger or more pronounced. In some cases, women may also experience the development of spider veins or small red blood vessels, known as telangiectasia, which can occur due to hormonal influences on the vascular system.

The symptoms you described, such as occasional leg cramps or pain, can also be related to changes in circulation. Hormonal contraceptives can affect the way blood clots, and while most women tolerate these medications well, some may experience side effects that include changes in circulation or vascular discomfort.
It is important to monitor these symptoms, especially if they are new or worsening. If you experience significant pain, swelling, or any other concerning symptoms, it is advisable to consult your healthcare provider. They may want to evaluate your symptoms further to rule out any serious conditions, such as deep vein thrombosis (DVT), which can occur with hormonal contraceptive use, particularly in women who have other risk factors.

In summary, while visible blood vessels can be a side effect of taking birth control pills, it is essential to discuss any new or concerning symptoms with your healthcare provider. They can help determine whether these changes are a normal response to the medication or if further investigation is needed. If necessary, they may suggest alternative contraceptive methods or additional treatments to alleviate your symptoms. Always prioritize your health and well-being by seeking professional advice when experiencing changes in your body.

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