The duration of partial placenta previa bleeding varies from person to person and there is no fixed range of values.
After the 28th week of pregnancy, if a pregnant woman has a partial placenta previa, it may cause painless vaginal bleeding. There is no fixed range for the duration of painless vaginal bleeding.
When a pregnant woman has placenta praevia, if the condition is more severe, the duration of vaginal bleeding may be longer, and if the bleeding continues, it may trigger contractions resulting in preterm labor. If the condition is mild, the vaginal bleeding may clear up in a day or two and there is no obvious effect on the fetus.
Pregnant women with partial placenta previa may under the guidance of an obstetrician/gynecologist, undergo regular checkups and, if necessary, terminate the pregnancy with an elective Caesarean section.