Fetomaternal Alloimmune Thrombocytopenia 3 C6065895
Another form of maternal immune system attack on fetal platelets, similar to type 2, causing low platelet counts in the baby. It affects unborn and newborn babies. Treatment approaches include immunoglobulin therapy and transfusions.
Key facts at a glance
- ICD-10
- D64.9
- ICD-11
- 3A00.0
- Body system
- hematologic
- Severity
- severe
- Chronic
- false
Signs and symptoms
Common signs and symptoms that may indicate this condition.
Warning signs - seek immediate care
Intracranial hemorrhage
Severe gastrointestinal bleeding
Generalized symptoms
(hematologic)Significant symptoms that substantially affect daily functioning.
Frequency: Varies
Petechiae
(hematologic)Epistaxis
(hematologic)Diagnosis and tests
How this condition is diagnosed and what test results mean.
Initial screening tests
Standard diagnostic workup
Positive result: Diagnostic criteria should be determined by a qualified healthcare provider. [Content pending medical review.]
Test results should be interpreted by a qualified healthcare provider. [Content pending medical review.]
Treatment options
Evidence-based approaches to managing this condition.
First-line treatments
Maternal IVIG therapy
Intravenous immunoglobulin administered to the mother during pregnancy to reduce maternal antiplatelet antibodies and minimize fetal platelet destruction.
Medication management with follow-up
Active treatment with regular monitoring by a healthcare provider is recommended.
Corticosteroid therapy
Prenatal corticosteroids to suppress maternal antibody production and potentially improve fetal platelet counts when combined with IVIG.
Additional treatment options
Intrauterine platelet transfusion
Direct fetal platelet transfusion under ultrasound guidance for severe thrombocytopenia. Provides temporary increase in fetal platelet count.
procedureIntensive fetal surveillance
Regular ultrasound monitoring of fetal platelet counts, growth, and wellbeing throughout pregnancy to guide delivery timing and intervention decisions.
monitoringPlanned delivery with neonatal support
Coordinated delivery planning including caesarean section to minimize trauma risk and immediate neonatal hematology involvement for platelet transfusion if needed.
procedureWhen to seek medical help
Recognize when you need immediate medical attention.
See a doctor within 24 hours
Moderate to severe symptoms that may indicate worsening of this condition. Prompt medical evaluation is recommended.
Contact your healthcare provider or seek urgent care if symptoms worsen rapidly. Go to the emergency department for life-threatening symptoms.
Frequently asked questions
Common questions about this topic.
What is Fetomaternal Alloimmune Thrombocytopenia 3 C6065895?
Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]
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This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 20, 2026. · Read our editorial policy