Final answer:
Placenta previa is the condition where the placenta covers the cervix, leading to painless, soft uterus and risks of antepartum hemorrhage.
Step-by-step explanation:
The condition characterized by a painless, soft uterus and is indicative of a placental issue is known as placenta previa. This occurs when the placenta partially or completely covers the cervix, which can lead to significant antepartum hemorrhage. Placenta previa can happen if the embryo implants too close to the internal os of the uterus (the internal opening of the cervix), which is not an optimal location for implantation. It is a condition that affects about 0.5 percent of pregnancies, and it is a major cause of antepartum bleeding after the 24th week of pregnancy.