When a patient has vaginal bleeding within the first 20 weeks of pregnancy, placenta previa is the likely cause. It differs from abruptio placentae and spontaneous abortion, which present their own distinct conditions.
When a patient presents with vaginal bleeding within the first 20 weeks of pregnancy, placenta previa should be suspected. Placenta previa occurs when the placenta partially or completely covers the cervix opening, leading to bleeding.
On the other hand, abruptio placentae refers to the premature detachment of the placenta from the uterine wall, causing bleeding, fetal distress, or fetal death.
Spontaneous abortion, also known as miscarriage, is common before the 12th week of pregnancy due to various reasons like chromosomal abnormalities.
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