First trimester bleeding

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

See also

• Antepartum hemorrhage
• Obstetrical hemorrhage