Hydrocolloid hypnobirthing is the process of placing a special balloon into the cervical canal and then injecting a certain amount of saline into the balloon inside and outside the cervical opening, thus stimulating uterine contractions. Oxytocic injection is a direct drip of oxytocin through the vein, which causes the uterus to contract and the cervix to dilate, so as to achieve the purpose of catalyzing labor. 1. Hydrocapsule: The hydrocapsule is placed in the cervix to stimulate the uterus to induce labor. The effect of this method is slower than that of oxytocin injection, but in the process of operation, there is a possibility of uterine cavity infection. 2. Oxytocin injection: it is a direct drip of oxytocin through the vein, the effect is fast and relatively direct, but in the process of drip, there should be a person to monitor the uterine contractions and fetal changes in the uterus, if there is a strong contraction of the uterus, or intrauterine distress, you need to stop using the drug immediately. Both methods have their own advantages and disadvantages, and must be used under the guidance of a doctor, while paying attention to the indications and contraindications.