Placental abruption is a condition in which the placenta, which is responsible for providing oxygen and nutrients to the developing fetus during pregnancy, separates from the uterine wall before delivery. This can occur due to various reasons such as trauma, high blood pressure, or certain infections. When this happens, it can cause severe bleeding and deprive the baby of essential nourishment, leading to potential health risks for both mother and child. It is a serious medical emergency that requires immediate attention from healthcare professionals.