Fetal heart monitoring contractions how much it is time to give birth does not have a clear value, according to the pregnant woman’s uterine orifice and fetal pre-disclosure to determine the situation, the normal uterine pressure after labor is about 80-100mmHg. The rhythmicity of contractions is a major sign of labor, and it is usually necessary to monitor the fetal heart rate to clarify the specific value of the change. At the beginning of labor, contractions usually last about 30 seconds, with intervals of about 5-6 minutes, and may gradually increase from 20-30 mmHg. As time passes, the intensity of the contractions increases and the value of the contractions rises to around 40-60 mmHg. If the contractions reach 80-100 mmHg and there is a gap of about 1-2 minutes between contractions, labor has officially begun, especially in the second stage of labor. If the contractions are weak and do not reach the required level, it may be necessary to use oxytocin under the supervision of the doctor to strengthen the contractions. Fetal heart rate contractions are only a reflection of the labor force, and do not determine when labor will occur, which should be taken into account in conjunction with the dilatation of the uterine opening and the descent of the baby’s first sign of labor.