Does a threatened miscarriage cause pain?

Generally, miscarriage may be accompanied by pain. The specific analysis is as follows:

Threatened miscarriage refers to the occurrence of slight vaginal bleeding before 28 weeks of pregnancy, often dark red in color or blood-tinged discharge. Subsequently, due to uterine contractions, there may be intermittent lower abdominal pain or backache. When signs of miscarriage appear, the uterus will contract irregularly in an attempt to expel the products of conception. These contractions are similar in sensation to those experienced during menstrual cramps.

In some pregnant women, the pain might be relatively mild, manifesting as a dull ache, such as slight pressure in the abdomen or a mild soreness in the lower back, and occurs occasionally. This is due to weaker uterine contractions or a lower individual sensitivity to pain. However, other pregnant women may experience more noticeable pain, characterized by intermittent cramping, due to stronger uterine contractions and greater pressure changes within the uterus as well as increased stimulation of surrounding tissues.

In addition to pain, threatened miscarriage is also accompanied by vaginal bleeding. If these symptoms occur, the pregnant woman should seek immediate medical attention for ultrasound examination, blood human chorionic gonadotropin (hCG), and progesterone testing, among other assessments, to determine the condition of the embryo. At the same time, the pregnant woman needs bed rest, avoid strenuous activities and sexual intercourse, and follow appropriate measures to preserve the pregnancy under a doctor's guidance, such as taking medications designed to support the pregnancy.