Editorial to Special Issue.

Area of Science:

• Obstetrics and Gynecology
• Maternal-Fetal Medicine

Background:

• The diagnostic criteria for preeclampsia have undergone substantial revisions over the last two decades.
• These changes reflect advancements in understanding the pathophysiology and clinical presentation of the condition.

Discussion:

• The evolving definition impacts epidemiological studies and clinical trial eligibility.
• Discrepancies in diagnostic criteria across different regions or time periods can complicate comparisons.

Key Insights:

• Recent definitions emphasize broader criteria, including earlier onset and non-proteinuric hypertension.
• The inclusion of specific end-organ dysfunctions is now central to diagnosis.

Outlook:

• Future research will likely refine diagnostic thresholds further.
• Standardization of diagnostic criteria globally remains an important goal for improving maternal care.