Subchorionic Haematoma: A Complete Guide
Welcome to this Nub Hub guide. This article is designed to help you understand the topic and feel more confident in your pregnancy journey.
Table of Contents
- What Is a Subchorionic Haematoma?
- Symptoms and Diagnosis
- Causes and Risk Factors
- Management and Outlook
- FAQ
What Is a Subchorionic Haematoma?
A subchorionic haematoma, sometimes called a subchorionic bleed or collection, is a pocket of blood that forms between the uterine wall and the chorionic membrane surrounding your baby. It is relatively common, occurring in a small percentage of pregnancies, and is often discovered during an early ultrasound scan. Most subchorionic haematomas are small and resolve on their own without affecting the pregnancy, though larger ones require closer monitoring.Symptoms and Diagnosis
The most common sign is vaginal bleeding, which can range from light spotting to heavier bleeding. Some women experience cramping or lower abdominal pain, while others have no symptoms at all and the haematoma is found incidentally at a scan. If you experience any bleeding in pregnancy, contact your midwife, GP, or local early pregnancy unit. They will usually arrange an ultrasound to check on your baby and locate the source of bleeding.Causes and Risk Factors
The exact cause is often unknown, but subchorionic haematomas are thought to result from blood collecting where the placenta or membranes meet the uterine wall. They are more common in older mothers and those who have had fertility treatment. Most are not caused by anything you did, and everyday activities, exercise, or sex do not typically trigger them. Trying not to blame yourself is important, as these bleeds often happen without a clear reason.Management and Outlook
Treatment depends on the size of the haematoma and your symptoms. Small haematomas usually require no treatment and are monitored at routine scans. For larger bleeds, your care team may recommend pelvic rest, reduced activity, or in some cases modified bed rest. Most subchorionic haematomas shrink and disappear over a few weeks. While there is a slightly increased risk of complications with larger haematomas, many women go on to have healthy pregnancies and babies.FAQ
### Is a subchorionic haematoma dangerous?Most are small and resolve on their own without harming the baby. Larger haematomas need closer monitoring, but many women go on to have healthy pregnancies.
Will I need bed rest with a subchorionic haematoma?
Not always. Small haematomas often need no treatment. Your care team may suggest reduced activity or pelvic rest for larger bleeds, depending on your individual situation.
Can I still exercise with a subchorionic haematoma?
Ask your midwife or doctor. They may advise modifying or pausing exercise until the haematoma shrinks, particularly if you have had bleeding or cramping.
This article is for informational purposes only and does not constitute medical advice.
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