Immune Thrombocytopenia (ITP) in Pregnancy
Pregnancy is a time of major change, and it is natural to feel unsure or worried if you have ITP or are newly diagnosed during pregnancy. The good news is that most people with ITP have healthy pregnancies and healthy babies. With the right monitoring and care, you can feel confident and supported throughout your pregnancy, birth and postpartum journey.
This page explains how ITP behaves during pregnancy, how it is managed, and what to expect for you and your baby.
Understanding Low Platelets in Pregnancy
Low platelets are common in pregnancy. There are two main reasons this can happen:
Gestational thrombocytopenia
- The most common cause of low platelets in pregnancy
- Usually mild
- Often discovered late in pregnancy
- Does not cause bleeding problems
- Platelets return to normal after birth • Does not require treatment
Immune Thrombocytopenia (ITP)
- Can be pre existing or newly diagnosed during pregnancy
- Caused by the immune system destroying platelets
- May cause bruising or bleeding
- May require monitoring or treatment
Your healthcare team will help determine which condition you have. This is important because the management is different.
I Already Have ITP. What Does Pregnancy Mean for Me?
Many people with pre existing ITP have healthy pregnancies and healthy babies.
If you are thinking about becoming pregnant, planning ahead can help you feel more confident and supported from the very beginning.
Planning a Pregnancy When You Have ITP
If you are considering pregnancy, it is helpful to speak with your haematologist and obstetric team before you start trying. This allows you to:
- Review your current platelet levels and treatment plan
- Understand how your ITP may behave during pregnancy
- Discuss which medicines are safe to continue or stop
- Plan how often you may need monitoring
- Talk through any previous pregnancy experiences or concerns
- Make sure you have a clear plan for early pregnancy care
Pre pregnancy planning is not about limiting your choices. It is about making sure you have the right support in place so you can begin pregnancy feeling informed and prepared.
Being Pregnant With Pre Existing ITP
Most people with ITP go through pregnancy without major complications. Some notice their platelet count stays stable, while others may see it rise or fall at different stages.
These changes are common and do not always mean treatment is needed.
Your care team will usually:
- Monitor your platelet count throughout pregnancy
- Check for any bruising or bleeding symptoms
- Plan ahead for delivery and anaesthesia options
- Adjust treatment only if needed
Most people with ITP do not need treatment during pregnancy unless symptoms change or platelet levels drop to a point where treatment is recommended.
Newly Diagnosed ITP During Pregnancy
Some people are diagnosed with ITP for the first time during pregnancy. This can feel overwhelming, but it is manageable with the right support.
Your doctor may suspect ITP if:
- Platelets are lower than expected for pregnancy
- Platelets are falling over time
- There is bruising, petechiae or bleeding
- Other causes of low platelets have been ruled out
Diagnosis usually involves:
- A medical history
- A physical examination
- A Full Blood Count
- A blood film
- Tests to rule out other conditions
Bone marrow tests are rarely needed during pregnancy.
When Treatment Is Needed During Pregnancy
Not everyone with ITP needs treatment. Treatment is usually recommended if:
- There is significant bleeding
- Platelets fall to a level that increases bleeding risk
- Platelets need to be raised for birth or an epidural
- Symptoms affect daily life
Your care team will consider your platelet count, symptoms, stage of pregnancy and birth plan.
Safe Treatment Options During Pregnancy
Several treatments can safely raise platelet counts during pregnancy.
Corticosteroids
Often used as a first option when treatment is needed. They can help raise platelet levels quickly.
Intravenous Immunoglobulin (IVIg)
Used when a rapid increase in platelets is needed or when steroids are not suitable.
Thrombopoietin Receptor Agonists
These may be considered in specific situations, usually later in pregnancy or when other treatments are not effective.
Treatments usually avoided
Some medicines used for ITP outside pregnancy are not recommended during pregnancy. Your specialist will guide you on what is safe.
Planning for Birth
Most people with ITP can have a normal vaginal birth. The type of birth is usually determined by obstetric needs, not by platelet count alone.
Your team will plan ahead to ensure your platelet count is safe for:
- Vaginal birth
- Caesarean section if needed
- Epidural or spinal anaesthesia
If your platelet count is lower than recommended for an epidural, your team may suggest treatment in the weeks leading up to birth.
What to Expect After Birth
After delivery, platelet counts may rise, fall or stay the same. Your team will continue to monitor you for a short time.
Bleeding after birth
Most people with ITP do not experience excessive bleeding, but your team will take precautions to keep you safe.
Medications after birth
Some treatments that are avoided during pregnancy may become options again postpartum.
Your Baby’s Platelets
Most babies born to parents with ITP have normal platelet counts. A small number may have low platelets at birth because antibodies can cross the placenta.
Your baby’s care team may:
- Check the baby’s platelet count after birth
- Monitor for bruising or bleeding
- Repeat tests if needed
Low platelets in newborns usually improve on their own within days or weeks.
Breastfeeding With ITP
Most people with ITP can breastfeed safely. Breastfeeding does not usually affect platelet counts in you or your baby.
If you are taking medication, your doctor will discuss which treatments are compatible with breastfeeding.
When to Seek Medical Care
Contact your healthcare team or seek urgent care if you experience:
- Heavy or prolonged bleeding
- Severe or unusual headaches
- Vision changes
- Dizziness or fainting
- A sudden increase in bruising or petechiae
- Concerns about your baby’s bleeding or bruising
If you are unsure, it is always safer to get checked.
Support During Pregnancy
Pregnancy with ITP can feel overwhelming at times. Support can make a big difference. Many people find it helpful to connect with:
- ITP support groups
- Pregnancy and parenting communities
- Haematology nurses
- Counsellors or psychologists
- Other parents who have been through ITP in pregnancy
You are not alone, and help is available at every stage.
