Vol. 11, Issue 1, Part A (2025)

Abstract
Numerous physiological and haematological changes that occur during pregnancy non-pathologically which may seem abnormal to non-pregnant individuals. Pregnancy-related hematologic alterations are frequent and may be brought on by foetal or maternal death. This haematological modification mainly necessary to fulfill the demands of the growing foetus and placenta, which even involves significant changes in blood volume. Pregnancy-related anaemia is most frequently caused by iron deficiency anaemia (IDA). Not only that, but thrombocytopenia is currently the second most prevalent hematologic disorder in pregnancy, following postpartum haemorrhage-causing anaemia. Thrombocytopenia in pregnancy can have a variety of causes, ranging from benign to potentially fatal, requiring early detection and intervention. These disorders include immunological thrombocytopenia, pregnancy-associated atypical haemolytic-uremic syndrome, thrombotic thrombocytopenic purpura, and gestational thrombocytopenia. These indicate that in order to prevent negative consequences, pregnant women's haematological parameters should be monitored at all stages of the pregnancy. The majority of these modifications, including those to the haemostatic profile, platelets, red blood cells and white blood cells, and the scientific basis for them, are emphasized in this review.