Having a baby is the most important event in a woman’s life, and it is the greatest blessing for a family if she can deliver smoothly; if she encounters a difficult birth, it is the greatest misfortune for a family. The development of childbirth medicine has led to the introduction of hypnosis, which has saved the lives of many mothers and children and reunited many families. Most of us don’t know much about the hypodermic needle, but we know that it is a birth aid. If you use it properly, you will be happy, but if you don’t use it properly, you will be miserable for life. Therefore, we need to know more about the hypodermic needle, but also pay attention to the careful use. Oxytocin is an oxytocin that is commonly used during labor and delivery procedures to enhance the contractility of the uterus, thus helping the baby to come out smoothly. However, it is not possible to use oxytocin in any case, and the use of oxytocin should be based on the physical examination of the mother and the fetus by the doctor, according to the size of the fetus, the maturity of the placenta, the condition of the amniotic fluid, the pelvis of the fetus and the condition of the mother’s cervix, and only if they are qualified can oxytocin be used. In the following two cases, you cannot use the hypnobirthing injection, if you use it, you will not be able to deliver the baby smoothly, and it may harm the fetus. When the fetal position is not correct or the pelvis is narrow, even if the uterus contracts strongly, the fetus cannot pass through the birth canal due to the small pelvis and the fetal position is not correct, which will eventually lead to the rupture of the uterus. Second, when the contractions are uncoordinated, the use of oxytocin at this time not only can’t make the labor speed up, but also make the labor stop and make the fetus lack oxygen chamber rest in the uterus, resulting in oxytocin can make the uterus contract too strong or uncoordinated. You should have a correct understanding of oxytocin, do not think that the injection of oxytocin can make the pregnant woman give birth immediately and shorten the process of labor, in many cases this is not the case, even with the use of oxytocin, it will take several hours or even up to 24 hours to start labor. Even with the use of oxytocic injection, it takes several hours or even 24 hours for labor to start. The effect of oxytocic injection is only to induce contractions, but not to shorten the labor process significantly, and the opening of the cervix also takes time. If there are factors that affect the normal delivery, in most cases, it is recommended to choose a caesarean section, which is relatively safe.