Bleeding at 38 weeks is considered to be a symptom of preterm labor, and the possibility of placenta praevia, placental abruption and other causes of bleeding cannot be ruled out. The 38 weeks of pregnancy belongs to the late full-term pregnancy, at this time bleeding symptoms are considered may be related to the following factors. 1. Symptoms of preterm labor: 38 weeks pregnant women bleeding, if the amount of bleeding is small, lower abdominal pain, a feeling of falling, etc., may be considered a symptom of preterm labor, you need to prepare the daily necessities of the pregnant woman, the newborn baby, accompanied by family members to the hospital to wait for delivery. 2. Placenta praevia: Bleeding at 38 weeks of pregnancy, if it is painless vaginal bleeding, may be related to placenta praevia, need to go to the hospital as soon as possible to clarify the diagnosis. 3. Placenta previa: pregnant women 38 weeks bleeding, if the abdominal pain is severe, bleeding, blood is bright red, etc., there may be placenta previa, need to terminate the pregnancy as soon as possible, for the uterus is not open in the short term can not be vaginally delivered need to cesarean section to remove the fetus. Therefore, pregnant women bleeding at 38 weeks need to go to the hospital in time.