Placenta may be attached to periphery or to one side.
Attempts to expel placenta without waiting for uterine contraction are sometimes productive of hæmorrhage.
Hæmorrhage after expulsion of placenta.
Hæmorrhage in interval between pains—comes from placental site.
Hæmorrhage in stream not checked by uterine contraction is due to laceration of the canal.
Hæmorrhage in abnormal quantities at beginning of pains.
Pure atony—comes early.
Hæmophilia again.
Diagnosis.—
Palpation of uterus through abdomen.