How long it takes to give birth to a baby with a contraction that lasts five or six minutes is related to whether it is a primiparous or a parturient labor. In the case of primiparous women, the total duration of labor usually does not exceed 24 hours, and in the case of transient women, the total duration of labor usually does not exceed 16 hours. Moreover, due to individual differences, the time required for labor varies among pregnant women with different body types. The first stage of labor (cervical dilatation) is characterized by one contraction every five to six minutes, while the total labor is divided into three stages, namely, cervical dilatation, delivery of the fetus and delivery of the placenta. The total duration of labor is related to whether or not the labor is experienced. The first stage of labor for primigravid women does not exceed 20 hours, the second stage does not exceed 3 hours, and the third stage does not exceed 30 minutes. The duration of labor is shorter for primiparous women than for primiparous women. In addition, labor is affected by a number of factors, including labor force, birth canal, fetus, and psychosocial factors, and the time required for labor varies among pregnant women due to the influence of the above factors.