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PubMed This is a summary of 36 peer-reviewed journal articles Updated
Obstetrics · Hemoglobin SC Disease

Can You Have a Safe Pregnancy with Hemoglobin SC Disease?

At a Glance

A safe pregnancy is possible with Hemoglobin SC disease, though it is considered high-risk. Success requires early planning, specialized maternal-fetal care, medication adjustments before conception, and close monitoring for complications like preeclampsia and pain crises.

In this answer

2 sections

01

Potential Risks to Mother and Baby

02

Managing Your Pregnancy

Yes, it is possible to have a safe and successful pregnancy if you have Hemoglobin SC (HbSC) disease, but it is considered a high-risk pregnancy [1][2]. Because of this, you will need specialized care and careful monitoring from before conception through the period after delivery [3][4][5]. While HbSC is sometimes incorrectly described as a “mild” form of sickle cell disease, the physical demands of pregnancy increase the likelihood of complications for both you and your baby [6][7]. Building a comprehensive care team that includes a Maternal-Fetal Medicine (MFM) specialist (an obstetrician who specializes in high-risk pregnancies) and your hematologist is essential for managing these risks and protecting your health [3][5].

Potential Risks to Mother and Baby

Pregnancy causes many changes in the body that can trigger or worsen complications related to HbSC disease. Understanding these risks is the first step in managing them.

  • Preeclampsia: This is a serious blood pressure condition that develops during pregnancy [8][9]. Women with HbSC have an increased risk of developing this condition, which can be life-threatening if not closely monitored [10].
  • Vaso-occlusive crises (VOC): These are the painful episodes typical in sickle cell conditions, caused when sickled red blood cells block blood flow [11]. The stress of pregnancy can make these crises more frequent and severe [12][13].
  • Sickle cell retinopathy: This involves damage to the blood vessels in the back of the eye [7]. HbSC disease carries a higher risk of eye complications than other sickle cell types, and the physical changes of pregnancy can cause this condition to worsen [14].
  • Venous thromboembolism (VTE): These are dangerous blood clots that can form in the veins [15]. Because people with HbSC often have higher baseline hemoglobin levels than those with other forms of sickle cell disease, they have an increased risk of developing these clots during pregnancy and after delivery [16].
  • Fetal growth and early delivery: Babies born to mothers with HbSC disease have a higher chance of being born prematurely and having lower birth weights [17][4]. This is sometimes due to intrauterine growth restriction (when a baby does not grow as expected inside the womb) or placental issues [17]. In some cases, your doctor may recommend medically inducing labor before your due date to protect the health of you and your baby [4].

Managing Your Pregnancy

Because there are unique risks, your prenatal care will look different from a standard pregnancy. Your care team will focus on close surveillance and proactive management [4][13].

Preconception Planning

Preparation should begin before you get pregnant.

  • Genetic counseling and testing: Because HbSC is an inherited genetic condition, it is highly recommended that your partner undergoes blood testing (such as a hemoglobin electrophoresis) to determine if they carry any sickle cell or other hemoglobin traits [18][19]. This will help you understand the baby’s risk of inheriting a sickle cell syndrome [19].
  • Medication adjustments: If you are taking hydroxyurea (a medication used to reduce the frequency of pain crises), it is highly recommended to stop taking it several months before attempting to conceive or as soon as pregnancy is confirmed, as it can cause harm to a developing baby [20][21].
  • Folic acid: People with sickle cell disease have a much higher rate of red blood cell turnover. To prevent anemia and birth defects, your doctor will likely recommend starting a high-dose folic acid supplement before and during pregnancy [22].
  • Eye health: You should schedule a comprehensive dilated eye exam to check for and treat any retinopathy before pregnancy [7].

Monitoring During Pregnancy

During your pregnancy, you will need frequent check-ups. Your doctor will likely schedule serial ultrasounds (imaging tests that use sound waves to create pictures of the baby) to closely monitor your baby’s growth and well-being [13][23].

To help prevent preeclampsia, guidelines often suggest starting a daily low-dose aspirin (baby aspirin) near the end of your first trimester [13][24]. Your medical team will keep a very close watch on your blood pressure and kidney function throughout your pregnancy [25].

If you experience a pain crisis (VOC) while pregnant, you will need a customized pain management plan. Common over-the-counter pain relievers like NSAIDs (such as ibuprofen) are not safe in the later stages of pregnancy because they can cause kidney and heart problems in the baby [26]. Instead, your doctor will guide you toward safer alternatives, including hydration and, if necessary, prescription pain medications like opioids [27][28].

Delivery Planning and Blood Transfusions

Many patients wonder if they will automatically need blood transfusions during pregnancy. Current evidence shows that prophylactic blood transfusions (transfusions given as a preventive measure rather than in response to a crisis) are not routinely recommended for all pregnant women with HbSC disease [29][30][31]. Instead, care is tailored to you individually [32]. However, your doctors might consider a preventative transfusion schedule if you have a history of severe complications, frequent hospitalizations, or preterm deliveries in past pregnancies [33].

As your due date approaches, you may also meet with an anesthesiologist to safely plan your pain management options for labor and delivery.

Postpartum Care

The period after delivery is also critical. Because of the heightened risk for blood clots, your care team will monitor you closely and may prescribe thromboprophylaxis (treatments, such as blood thinners or compression devices, used to prevent blood clots) [11][34]. If you plan to breastfeed, rest assured that standard blood thinners (like low molecular weight heparin) are generally safe to take while nursing, as they do not pass significantly into breast milk [35][36].

By partnering with specialists and following a tailored, high-risk care plan, many women with HbSC disease successfully navigate these challenges and deliver healthy babies [8][3].

Common questions in this guide

Is it safe to get pregnant if I have Hemoglobin SC disease?
Yes, it is possible to have a safe pregnancy with Hemoglobin SC disease, though it is considered high-risk. You will need specialized care from a Maternal-Fetal Medicine specialist and a hematologist to closely monitor your health and your baby's development.
Should my partner get tested for sickle cell traits before we have a baby?
Yes, it is highly recommended that your partner undergoes blood testing, such as a hemoglobin electrophoresis. Because Hemoglobin SC is an inherited genetic condition, testing helps determine if your baby is at risk for inheriting a sickle cell syndrome.
Can I continue taking hydroxyurea while I am pregnant?
No, you should stop taking hydroxyurea several months before trying to conceive or as soon as you find out you are pregnant. This medication can cause harm to a developing baby, and your doctor will help you find safer alternative ways to manage your condition.
What medications are safe to take for a pain crisis during pregnancy?
Common over-the-counter pain relievers like ibuprofen are not safe in the later stages of pregnancy because they can cause kidney and heart problems in the baby. Your doctor will provide a customized pain management plan that includes safe alternatives, hydration, and prescription medications if necessary.
Will I automatically need a blood transfusion if I am pregnant with HbSC disease?
Preventative blood transfusions are not routinely required for all pregnant women with Hemoglobin SC disease. Your doctors may only recommend a scheduled transfusion if you have a history of severe complications, frequent hospitalizations, or previous premature deliveries.

Questions to Ask Your Doctor

Curated prompts to bring to your next appointment.

  1. 1.Has my partner been tested for hemoglobin traits, and can we schedule genetic counseling to understand our baby's risk?
  2. 2.What dose of folic acid should I take before conceiving and throughout my pregnancy?
  3. 3.At what point in my pregnancy should I start taking low-dose aspirin to lower my risk of preeclampsia?
  4. 4.What medications are safe for me to take if I have a pain crisis (VOC) at different stages of my pregnancy?
  5. 5.Does my current care team need to be adjusted to include a Maternal-Fetal Medicine (MFM) specialist?
  6. 6.At what point in my pregnancy might we discuss the need for a blood transfusion, and what specific factors would lead to that recommendation?

Questions For You

Tap a prompt to share your answer — we'll use it plus this page's context to start a tailored conversation.

Related questions

Can Hemoglobin C Trait Turn Into Hemoglobin C Disease?Does Hemoglobin C Disease Cause Severe Pain Crises?Who is Most Likely to Inherit Hemoglobin C Disease?How to Manage Hemoglobin C Disease: Diet & LifestyleHemoglobin C Disease: Enlarged Spleen Risks & SymptomsCan I Take Iron for Anemia with Hemoglobin C Disease?What Is Hemoglobin C Disease Life Expectancy?What Are Target Cells and Crystals in Hemoglobin C?Does Hemoglobin C Trait Affect A1c Test Results?Both Parents Have Hemoglobin C Trait: Baby's Chances?HbSC vs HbSS Sickle Cell: What's the Difference?

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This page is for informational purposes only and does not replace professional medical advice. Always consult your maternal-fetal medicine specialist or hematologist regarding your specific pregnancy risks and care plan.

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