Examination items for recurrent miscarriage Chorionic chromosome: to clarify whether it is a scattered incidental factor and to clarify the cause of this miscarriage. Genetic factors: chromosomal examination of both spouses. Infection factors: TORCH, TB related examination. Endocrine metabolic factors. Menstrual days 2 to 4: FSH, LH, PRL, E2, T. Mid-luteal phase: (E2, P) x 3 times. Thyroid function. Fasting and 2 hours postprandial blood glucose. Blood folate, VitB12, intraerythrocytic folate, homocysteine. Anatomical factors: uterine tubal iodine oil imaging. Immune factors. Anticardiolipin antibodies. Blood group, Rh factor.