recurrent pregnancy loss→3 consecutive spontaneous abortions

Causes of recurrent pregnancy loss
Structural • Uterine: fibroids, adhesions, polyps
• Cervical insufficiency
Chromosomal • Aneuploidy
• Translocations/rearrangements
• Mosaicism
Immunologic/hematologic • Hypercoagulable disorders (eg, antiphospholipid syndrome)
• Alloimmune intolerance
Endocrine • Thyroid disease
• Polycystic ovary syndrome
• Diabetes mellitus
• Hyperprolactinemia
Other • Advancing maternal age
• Defective endometrial receptivity
• Decreased ovarian reserve
• Celiac disease

Initial work-up for these patients includes pelvic ultrasound, karyotype, and testing for antiphospholipid syndrome