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How Many Platelets Are in Pregnancy?

Published in Pregnancy Blood Health 1 min read

The average platelet count in pregnancy is decreased compared to non-pregnant individuals, with an average of 213,000/μL compared to a non-pregnant average of 250,000/μL. This is according to data from 06-Sept-2024.

Platelet Count Changes During Pregnancy

During pregnancy, several physiological changes occur that contribute to this decrease in platelet counts:

  • Hemodilution: The increase in blood volume during pregnancy dilutes the concentration of platelets.
  • Increased Platelet Consumption: The growing fetus and placenta require increased amounts of platelets, which can lead to more consumption.
  • Increased Platelet Aggregation: Hormonal changes during pregnancy increase the level of thromboxane A2, which enhances platelet aggregation. This leads to more platelets clumping together.

Impact of Reduced Platelet Counts

The reduced platelet count during pregnancy is usually not clinically significant, but, it is important to note.


Comparison Non-Pregnant During Pregnancy
Average Platelet Count 250,000/μL 213,000/μL



It is crucial to monitor platelet counts during pregnancy to address any serious issues.

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