False menstruation can result from improper attachment of the placenta. Bleeding usually occurs with the onset of labor, but can also occur later in pregnancy. They begin unexpectedly and are often abundant.
Such obstetric hemorrhages are dangerous due to the large loss of blood by the woman, which can result in the development of iron deficiency anemia and intrauterine fetal hypoxia. When this syndrome appears, hospitalization is necessary for dynamic observation and correction of clinical and laboratory parameters.