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Hydrops fetalis is a severe and challenging fetal condition usually defined as the excessive accumulation of fetal fluid within the fetal extravascular compartments and body cavities that manifests as edema, pleural and pericardial effusion and ascites. It is the end-stage of a wide variety of disorders. The cause may be immunologic (immune hydrops fetalis, IHF) or non immunologic (non-immune hydrops fetalis, NIHF), depending on the presence or absence of maternal antibodies against fetal red cell antigens (ABO incompatibility or rhesus (Rh) incompatibility).
Biomarker and diagnostic research for hydrops fetalis has been reported in the published literature.
Estimated prevalence: Unknown (Unknown prevalence).
4 clinical trials registered, 1 recruiting. Interventions under study include other interventions and gene therapy. Pipeline includes 2 NA. Research is primarily sponsored by academic and government institutions.
279 publications have been identified in PubMed for hydrops fetalis. Kisho has analyzed 212 by research type. Research spans Case Report / Case Series (39%), Review / Meta-Analysis (16%), and Epidemiology / Natural History (14%).
Research Type | Count | % of Total |
|---|---|---|
Patient case studies | 82 |
Data assembled from 4 of 12 sources · Last updated Sep 19, 2026, 11:53 AM UTC
European rare disease database
Genetic and Rare Diseases Info Center
Research summaries | 34 | 16% |
Disease patterns and progression | 29 | 14% |
Laboratory research | 27 | 13% |
Testing and diagnosis research | 19 | 9% |
Clinical study results | 14 | 7% |
New treatment approaches | 6 | 3% |
Other research | 1 | 0% |
Semcesen LN (2026). [PMID: 42040991](https://pubmed.ncbi.nlm.nih.gov/42040991/). *JIMD Rep*. [Basic Science / Preclinical]
Haddad FG (2026). [PMID: 40883153](https://pubmed.ncbi.nlm.nih.gov/40883153/). *Clinical lymphoma, myeloma & leukemia*. [Epidemiology / Natural History]
Allen VM (2026). [PMID: 41775679](https://pubmed.ncbi.nlm.nih.gov/41775679/). *Prenat Diagn*. [Diagnostic / Biomarker]
Costumbrado J (2026). [PMID: 29083656](https://pubmed.ncbi.nlm.nih.gov/29083656/). *Unknown Journal*. [Basic Science / Preclinical]
Tian Y (2026). [PMID: 41885968](https://pubmed.ncbi.nlm.nih.gov/41885968/). *JCI Insight*. [Basic Science / Preclinical]
Sorrenti S (2026). [PMID: 41819197](https://pubmed.ncbi.nlm.nih.gov/41819197/). *Am J Obstet Gynecol*. [Review / Meta-Analysis]
Klinke M (2026). [PMID: 40865916](https://pubmed.ncbi.nlm.nih.gov/40865916/). *Eur J Pediatr Surg*. [Case Report / Case Series]
Ochieng WO (2026). [PMID: 42221600](https://pubmed.ncbi.nlm.nih.gov/42221600/). *Pan Afr Med J*. [Case Report / Case Series]
Zhang Y (2026). [PMID: 42087738](https://pubmed.ncbi.nlm.nih.gov/42087738/). *Zhonghua Yi Xue Yi Chuan Xue Za Zhi*. [Case Report / Case Series]
Faridpour A (2026). [PMID: 42099300](https://pubmed.ncbi.nlm.nih.gov/42099300/). *Clin Case Rep*. [Case Report / Case Series]
AI-curated news mentioning hydrops fetalis
Updated Aug 24, 2026
A prospective cohort study highlights the incremental value of whole exome sequencing in improving diagnostic precision for non-immune hydrops fetalis. This research underscores the potential of advanced genetic testing in identifying underlying causes of this condition.
A recent study highlights congenital scrub typhus as a cause of non-immune hydrops fetalis, expanding the understanding of this rare condition. This discovery may influence future diagnostic and treatment approaches for affected pregnancies.