Most common cause of repeated 2nd-trimester foetal loss is
Common known causes of aboion: First trimester: defective germ cells, hormonal deficiency, trauma, acute infection. Second trimester: Cervical incompetence, uterine malformations, uterine fibroid, low implantation of placenta, twins and hydramnios
Chromosomal anomaly
Intrauterine infection
Abnormality of cervix and uterus
Hormonal imbalance
General obstetrics