Birth Control and Blood Clots: What Increases Your Risk

Alan Lucks | MD

Medically reviewed by Alan Lucks | MD, Alan Lucks MDPC Private Practice - New York on December 20th, 2025.

Key Takeaways

  • Blood clots are a rare but serious risk associated with certain types of birth control.

  • Understanding your personal risk factors can help you make safer choices about contraception.

  • Not all birth control methods carry the same level of risk for blood clots.

  • Consulting with healthcare professionals through telehealth platforms like Doctronic.ai can provide personalized advice quickly and conveniently.

  • Recognizing symptoms of blood clots early is crucial for prompt treatment.

Understanding the Link Between Birth Control and Blood Clots

Blood clots occur when blood thickens and clots together, potentially blocking veins or arteries. While blood clots can happen for various reasons, some types of birth control, particularly hormonal contraceptives, can increase the risk. This risk is important to understand, especially if you or someone you know is considering or currently using birth control.

Not all birth control methods carry the same risk. Combined oral contraceptives that contain both estrogen and progestin are more commonly linked to blood clots compared to progestin-only pills or non-hormonal methods. The estrogen component is the main factor that can increase clotting risk.

How Common Are Blood Clots with Birth Control?

While the risk is increased, blood clots remain rare for most birth control users. Studies estimate that about 3 to 9 out of every 10,000 women using combined oral contraceptives may develop a blood clot each year. This compares to about 1 to 5 per 10,000 women who are not using hormonal birth control.

Despite the low overall risk, the consequences of a blood clot can be serious, including deep vein thrombosis (DVT) or pulmonary embolism (PE). Understanding who is at higher risk can help guide safer contraceptive choices. Factors that may elevate the risk include age, obesity, smoking, and a personal or family history of clotting disorders. Women over the age of 35 who smoke, for instance, should have a thorough discussion with their healthcare provider about the potential risks and benefits of hormonal contraceptives.

The risk of blood clots can also vary based on the specific formulation of the birth control method. Some newer formulations of combined oral contraceptives contain different types of progestin, which may have varying impacts on clotting risk. For example, drospirenone, a type of progestin found in some birth control pills, has been associated with a slightly higher risk of blood clots compared to other progestins. Therefore, it's crucial for individuals to not only consider the type of birth control but also to engage in informed discussions with their healthcare providers about their unique health profiles and any potential risk factors that may influence their choice of contraception.

Pink pills placed over the words “BLOOD CLOT,” suggesting blood clot medication or treatment.Factors That Increase Your Risk of Blood Clots on Birth Control

Several personal and lifestyle factors can raise the likelihood of developing blood clots when using birth control. Knowing these can help you and your healthcare provider make informed decisions.

Age and Smoking

Women over 35 years old who smoke face a significantly higher risk of blood clots when using combined hormonal contraceptives. Smoking damages blood vessels and increases clotting tendencies, which can compound the effects of estrogen in birth control.

Personal or Family History of Blood Clots

If you have had blood clots before or have close family members who have experienced them, your risk is higher. Genetic factors like Factor V Leiden mutation can increase clotting risk. In these cases, non-estrogen birth control options or other methods may be safer.

Obesity and Sedentary Lifestyle

Being overweight or obese adds strain to the circulatory system and raises the risk. Similarly, prolonged inactivity, such as long flights or bed rest, can slow blood flow and lead to clot formation. Combining these with hormonal birth control increases the overall risk.

Other Health Conditions

Certain medical conditions, including high blood pressure, diabetes, and some autoimmune diseases, can increase blood clot risk. Discussing your full medical history with a healthcare provider is essential before starting birth control.

Types of Birth Control and Their Blood Clot Risks

Not all birth control methods carry the same risk for blood clots. Understanding the differences can help you choose the safest option for your health.

Combined Hormonal Contraceptives

These include birth control pills, patches, and vaginal rings that contain estrogen and progestin. They have the highest association with blood clots due to the estrogen component. The risk varies depending on the type of estrogen and progestin used.

Progestin-Only Methods

Progestin-only pills, injections, and implants generally do not increase blood clot risk. They are often recommended for women who have risk factors that make combined hormonal contraceptives unsafe.

Non-Hormonal Methods

Options like copper IUDs, condoms, and diaphragms carry no risk of blood clots. These can be suitable choices for those concerned about clotting or with known risk factors.

Recognizing Symptoms of Blood Clots

Early detection of blood clots can be lifesaving. Knowing the warning signs is crucial, especially if you are using birth control that increases clot risk.

Common Symptoms to Watch For

  • Swelling, pain, or tenderness in one leg, often in the calf

  • Warmth and redness over the affected area

  • Sudden shortness of breath or chest pain

  • Rapid heartbeat or coughing up blood

If you experience any of these symptoms, seek medical attention immediately. Blood clots can lead to serious complications if not treated promptly.

How Telehealth Can Help You Manage Birth Control and Blood Clot Risks

Accessing expert medical advice quickly is important when considering birth control options and managing potential risks. Telehealth services like Doctronic.ai offer convenient, affordable care from licensed doctors across all 50 states.

Doctronic’s AI-powered platform provides free AI doctor visits that deliver fast, personalized medical information based on the latest peer-reviewed research. For more detailed consultations, you can schedule telehealth video visits with real doctors for under $40 anytime, day or night.

This approach helps users get answers about birth control safety, blood clot risks, and symptoms without waiting weeks for an in-person appointment. It’s especially helpful for those with busy schedules or limited access to local healthcare.

Choosing the Right Birth Control for You

Deciding on a birth control method involves balancing effectiveness, convenience, and safety. Blood clot risk is one important factor, but it’s not the only one.

Discuss Your Medical History

Be open about your personal and family medical history, lifestyle habits, and any concerns with your healthcare provider. This information helps tailor recommendations to your unique situation.

Consider Your Lifestyle

Factors like smoking, activity level, and weight can influence which birth control options are safest. For example, quitting smoking can reduce blood clot risk and open up more contraceptive choices.

Regular Monitoring

Once you start birth control, pay attention to any new symptoms and keep in touch with your healthcare provider. Telehealth platforms like Doctronic.ai make it easy to get quick follow-up advice or second opinions as needed.

Key Points to Remember About Birth Control and Blood Clots

Blood clots are a rare but serious risk linked mostly to combined hormonal contraceptives containing estrogen. Your personal risk depends on age, smoking status, medical history, and lifestyle factors.

Progestin-only and non-hormonal birth control methods generally carry little to no clot risk. Recognizing symptoms early and seeking prompt care can prevent complications.

Using telehealth services such as Doctronic.ai provides fast, reliable access to expert advice on birth control safety and blood clot concerns, making it easier to make informed choices and stay healthy.

Frequently Asked Questions

No. Combined hormonal contraceptives with estrogen increase the risk, but progestin-only and non-hormonal methods do not significantly raise blood clot risk.

It depends on your specific history and genetic factors. Discussing this with a healthcare provider, including through telehealth services like Doctronic.ai, can help determine the safest option.

If you have symptoms of a blood clot seek medical attention immediately.

Yes. Smoking significantly increases the risk of blood clots, especially in women over 35 using combined hormonal contraceptives.

Yes. Telehealth platforms like Doctronic.ai offer fast, affordable consultations with licensed doctors who can provide personalized guidance.

References

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