Pregnancy is a time of major physical and hormonal changes. While most pregnancies progress normally, pregnancy also naturally increases the tendency of blood to clot. This is one of the body’s ways of preparing for blood loss during childbirth, but it can also increase the risk of developing a potentially serious blood clot. At Caprini Risk Score, we provide educational information to help readers better understand risk assessment and the factors healthcare professionals may consider when evaluating the likelihood of blood clots during pregnancy.
What Are Blood Clots During Pregnancy?
A blood clot is a clump of blood that forms when blood changes from a liquid to a more solid state. Clotting is a normal and necessary process, especially when the body needs to stop bleeding. However, a clot that develops inside a deep vein can become dangerous.
Pregnancy itself is a risk factor for DVT, and the risk remains elevated for approximately four to six weeks after giving birth. Other factors, including prolonged inactivity, previous blood clots, certain blood-clotting conditions, surgery, obesity, smoking, and a strong family history of DVT, can further increase risk.
Why Does Pregnancy Increase the Risk of Blood Clots?
During pregnancy, the body undergoes changes that make blood clot more easily. This is a natural adaptation that helps reduce excessive bleeding during childbirth.
A cesarean birth, prolonged immobility, or certain medical conditions may also increase the risk. Your obstetrician or other healthcare professional can assess your individual risk and determine whether additional blood clot prevention measures are appropriate.
What Are the First Signs of a Blood Clot?
A DVT does not always cause noticeable symptoms. According to the American College of Obstetricians and Gynecologists, only about half of people with DVT have signs or symptoms. When symptoms do occur, they commonly affect one leg.
If you notice sudden or unexplained swelling or pain in one leg during pregnancy, do not assume it is simply a normal pregnancy symptom. Contact your healthcare professional promptly for advice and assessment.
What Do Blood Clots Feel Like?
People often ask, what do blood clots feel like The experience can vary from person to person.
It is important to remember that pregnancy itself can cause leg discomfort, muscle cramps, and swelling. However, symptoms that are sudden, severe, unusual, or primarily affecting one leg deserve medical attention.
There is no reliable way to diagnose a blood clot based only on how it feels. A healthcare professional may need to perform tests, such as a Doppler ultrasound, to determine whether a DVT is present.
Signs of a Blood Clot That Has Reached the Lungs
A blood clot that travels to the lungs can cause a pulmonary embolism. This is an emergency.
If these symptoms occur, seek emergency medical care immediately. Do not wait to see whether the symptoms improve on their own.
How Can Blood Clots Be Prevented During Pregnancy?
Staying appropriately active can help maintain healthy circulation. Your healthcare professional can advise you about safe physical activity based on your pregnancy and individual circumstances. Long periods of unnecessary inactivity should generally be avoided unless your healthcare professional has specifically recommended restricted activity.
During long-distance travel, regular movement and stretching can help reduce the risk associated with prolonged sitting. ACOG recommends staying hydrated, wearing loose-fitting clothing, and walking or stretching at regular intervals during long trips. Compression stockings may be appropriate for some pregnant people, but they should be discussed with a healthcare professional first.
Blood Clot Treatment During Pregnancy
If a healthcare professional suspects a DVT, diagnostic testing may be needed. A Doppler ultrasound is commonly used to evaluate blood flow in the veins of the legs. Depending on the suspected location of the clot, additional imaging or blood tests may be considered.
The appropriate blood clot treatment depends on the location and severity of the clot, as well as the individual’s pregnancy and medical history.
What Should You Do If You Notice Symptoms?
If you develop sudden shortness of breath, chest pain, rapid breathing, a rapid heartbeat, or cough up blood, seek emergency medical care immediately. These symptoms can indicate a pulmonary embolism and should not be ignored.
It is also worth remembering that the risk does not disappear immediately after delivery. The postpartum period is an important time for blood clot prevention, particularly during the first several weeks after birth.
Conclusion
Understanding blood clots during pregnancy can help expecting parents recognize concerning symptoms without creating unnecessary anxiety. Pregnancy naturally changes the body’s clotting system, but knowing the signs of a blood clot, understanding what are the first signs of a blood clot, and learning how to prevent blood clots can help you respond appropriately if something feels unusual.
Have questions or concerns about blood clots during pregnancy? Contact us today to learn more and discuss your concerns with our healthcare team.
Frequently Asked Questions
Pregnancy increases the risk of developing DVT compared with not being pregnant. However, most pregnant people will not develop a blood clot. Individual risk depends on factors such as medical history, mobility, previous DVT, blood-clotting conditions, and certain pregnancy or delivery-related factors.
The first signs may include swelling, warmth, tenderness, redness, or persistent pain in one leg. Because some people have no noticeable symptoms, any concerning changes should be discussed with a healthcare professional.
A blood clot may feel like persistent pain, aching, tenderness, or pressure in one leg. The leg may also become swollen or warm. These symptoms can resemble other pregnancy-related discomforts, so medical evaluation is needed for an accurate diagnosis.
You can reduce some risk by staying appropriately active, avoiding prolonged periods of immobility, and following your healthcare professional’s recommendations. During long travel, regular movement, stretching, and adequate hydration may help reduce risk.
Sudden shortness of breath, chest pain, rapid breathing, rapid heartbeat, or coughing up blood can be symptoms of a pulmonary embolism. Seek emergency medical care immediately if these symptoms occur.
Yes. The risk of DVT remains elevated during pregnancy and for approximately four to six weeks after delivery. Paying attention to symptoms and following postpartum care instructions are important parts of protecting your health.
