الفهرس 
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Abstract
Early pregnancy loss is defined as the loss of a clinical pregnancy before 20 completed weeks of gestational age or loss of an embryo/fetus of <400 g in contrast the definition of recurrent pregnancy loss is two or more clinical pregnancy losses. This problem has bad psychological impact on couples .The incidence of recurrent pregnancy loss in the general population is close to 1%.
This study was designed to evaluate the relationship between vitamin D deficiency and recurrent pregnancy loss in Egyptian women.
The patients were recruited from El-Shatby Maternity University Hospital. They were divided into two groups:
Abortion group: (two subgroups):
a) Twenty non pregnant females with primary recurrent pregnancy loss
b) Twenty non pregnant females with secondary recurrent pregnancy loss
Non abortion group: (normal)
Twenty non pregnant females without history of abortions and completed normal pregnancy
All patients (n=60) underwent complete history taking, clinical examination and ultrasound examination. Laboratory investigations were carried out including hemoglobin level, liver function tests, renal function tests, random blood glucose and Quantitative determination of serum (25-OH-D) concentrations
The results showed that there was no statistical significant difference as regards age, hemoglobin level, random blood glucose ,liver function tests (ALT, AST) and renal function tests (urea ,creatinin) between the studied groups.
There was statistically significant decrease in serum vitamin D level in primary abortion group in comparison to non-abortion group and there was statistically significant decrease in secondary abortion group in comparison to non-abortion group but there was no statistically significant difference between primary abortion group and secondary abortion group as regards serum vitamin D level.