Symptoms of preterm labor in the eighth month of pregnancy include abdominal pain, initially irregular abdominal pain, often accompanied by a little vaginal bleeding or bloody discharge, which can later develop into regular abdominal pain in a process similar to full-term labor. The most obvious symptom of preterm labor in a pregnant woman in the eighth month of pregnancy is abdominal pain due to the presence of uterine contractions. At first, it is irregular abdominal pain, and if it is not treated in time, the abdominal pain may gradually worsen, with regular contractions, and finally the fetus is delivered. Some pregnant women also experience a small amount of vaginal bleeding during preterm labor. If there is premature rupture of membranes, there will also be vaginal runny fluid, which will appear pinkish watery if it mixes with blood, and some pregnant women will also experience discomfort such as lower back pain. Eight months pregnant with abdominal pain, vaginal bleeding and other symptoms, you need to consult a doctor for timely examination, under the guidance of the doctor for targeted treatment.