History may reveal antepartum hemorrhage. Abdominal examination usually finds the uterus non-tender, soft and relaxed. Leopold's Maneuvers may find the fetus in an oblique or breech position or lying transverse as a result of the abnormal position of the<unk> . Malpresentation is found in about 35% cases. Vaginal examination is avoided in known cases of<unk> . Confirmatory<unk>  can be confirmed with an ultrasound. Transvaginal ultrasound has superior accuracy as compared to transabdominal one, thus allowing measurement of distance between<unk>  and cervical os. This has rendered traditional classification of<unk>  obsolete. False positives may be due to following reasons: * Overfilled bladder compressing lower uterine segment * Myometrial contraction simulating<unk> l tissue in abnormally low location * Early pregnancy low position, which in third trimester may be entirely normal due to differential growth of the uterus. In such cases, repeat scanning is done after an interval of 15–30 minutes. In parts of the world where ultrasound is unavailable, it is not uncommon to confirm the diagnosis with an examination in the surgical theatre. The proper timing of an examination in theatre is important. If the woman is not bleeding severely she can be managed non-operatively until the 36th week. By this time the baby's chance of survival is as good as at full term.
Placenta praevia
Placental abruption
Toxic abortion
Prelabor rupture of membranes
Septic abortion
Obstructed labour
Uterine rupture
Unsafe abortion