First trimester bleeding

From Wikipedia, the free encyclopedia

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

It is a common occurrence and estimated to occur in approximately 25% of all (clinically recognized) pregnancies.^[1]^[2]

Differential diagnosis

Abortion (threatened, inevitable, complete, incomplete, missed, habitual, septic)
Gestational trophoblastic neoplasia
Ectopic pregnancy
Implantation bleeding
Chorionic hematoma
Spotting
Lower GU tract causes
- Vaginal bleed
- Cervical bleed

Mnemonic: AGE IS Low (during first trimester)

↑ Pregnancy, Bleeding. eMedicineHealth. URL: http://www.emedicinehealth.com/pregnancy_bleeding/article_em.htm. Accessed on: April 12, 2009.
↑ Behera MA, Price TM. Threatened Abortion. eMedicine.com. URL: http://emedicine.medscape.com/article/266110-overview. Accessed on: April 12, 2009.

Pregnancy with
abortive outcome

Other, predominantly
related to pregnancy

Digestive system	Acute fatty liver of pregnancy Hepatitis E Hyperemesis gravidarum Intrahepatic cholestasis of pregnancy

Integumentary system / dermatoses of pregnancy	Gestational pemphigoid Impetigo herpetiformis Intrahepatic cholestasis of pregnancy Linea nigra Prurigo gestationis Pruritic folliculitis of pregnancy Pruritic urticarial papules and plaques of pregnancy (PUPPP) Striae gravidarum

Nervous system	Chorea gravidarum

Blood	Gestational thrombocytopenia Pregnancy-induced hypercoagulability

Maternal care related to the
fetus and amniotic cavity

Other

phys/devp/memb

mthr/fetu/infc, epon

proc, drug (2A/G2C)

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