Editing Placental abruption (section)

=== Classification ===
Based on severity:{{cn|date=August 2024}}
* '''Class 0:''' Asymptomatic. Diagnosis is made retrospectively by finding an organized blood clot or a depressed area on a delivered placenta.
* '''Class 1:''' Mild and represents approximately 48% of all cases. Characteristics include the following:
** No vaginal bleeding to mild vaginal bleeding
** Slightly tender uterus
** Normal maternal blood pressure and heart rate
** No [[coagulopathy]]
** No [[fetal distress]]
* '''Class 2:''' Moderate and represents approximately 27% of all cases. Characteristics include the following:
** No vaginal bleeding to moderate vaginal bleeding
** Moderate-to-severe uterine tenderness with possible tetanic contractions
** Maternal tachycardia with orthostatic changes in blood pressure and heart rate
** Fetal distress
** Hypofibrinogenemia (i.e., 50–250&nbsp;mg/dL)
* '''Class 3:''' Severe and represents approximately 24% of all cases. Characteristics include the following:
** No vaginal bleeding to heavy vaginal bleeding
** Very painful tetanic uterus
** Maternal shock
** [[Hypofibrinogenemia]] (i.e., <150&nbsp;mg/dL)
** Coagulopathy
** Fetal death