Table 2.

Risk factors for PPH

Tone	uterine distension (multiple gestation, polyhydramnion, foetal macrosomia) uterotonics quick or prolonged labour (long) oxytocin exposure Chorioamnionitis uterus myomatosus
Tissue	retained placenta abnormal placental implantation (placenta adhaerens, accreta / increta / percreta)
Trauma	vulvovaginal injury episiotomy / perineal suture uterine rupture inversion of the uterus
Thrombin	gestational: thrombocytopenia with HELLP syndrome, DIC (i.e., with preeclampsia, intrauterine foetal death, placental abruption, amniotic fluid embolism) other: VWD, plasmatic coagulopathies, platelet function disorders, factor deficiencies (loss, consumption, dilution)