| Tone (uterine atony) |
Uterine distension
(multiparity, polyhydramnios, fetal macrosomia)
Tocolytics Precipitate labour or prolonged labour (Prolonged) oxytocin augmentation Chorioamnionitis Uterine fibroids |
| Tissue (placenta) | Retained placenta Abnormally invasive placenta (morbidly adherent placenta, placenta accreta/ increta/percreta) Placental remnants |
| Trauma | Vulvovaginal injury Cervical tear Episiotomy/perineal tear Uterine rupture Uterine inversion |
| Thrombin (coagulopathy) |
Pregnancy-induced:
Thrombocytopenia (HELLP syndrome, disseminated intravascular coagulation [DIC]) (e.g. in pre-eclampsia, intrauterine fetal death [IUFD], placental abruption, amniotic fluid embolism) Other: von Willebrand disease, plasmatic coagulopathies, thrombopathy, coagulation factor deficiencies (loss, consumption, dilution) |
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