First trimester bleeding

Overview
In obstetrics, first trimester bleeding, is bleeding from the vagina during pregnancy in the first trimester (0 weeks-12 weeks gestational age).

Differential diagnosis

 * abortion (threatened, inevitable, complete, incomplete, missed, habitual, septic)
 * gestational trophoblastic neoplasia
 * ectopic pregnancy
 * implantation bleeding
 * spotting
 * lower GU tract causes
 * vagina bleed
 * cervical bleed