Labor is defined as gradual, regular and increasing pain in the lower abdomen, usually at intervals of 5-6 minutes and lasting more than 30 seconds, accompanied by shortening of the cervical canal and dilatation of the opening of the uterus, and in some cases by premature rupture of the membranes or redness of the membranes. If the contractions cannot be suppressed by sedation, are not relieved after rest, and have a tendency to get progressively worse, consider labor to be imminent. If you are a primigravida, it is recommended that you be admitted to the hospital to wait for the delivery, and bring your maternity checkups, perinatal care booklet, birth certificate, and other relevant documents with you. If it is a menstruating woman, she should be admitted to hospital as early as possible to wait for labor, because the labor process of a menstruating woman is shorter, and the uterine opening may be complete and the fetus delivered in a short period of time. If you are a primigravida, you will usually go into labor within 24 hours, which is more time than a transient woman, and you are recommended to be admitted to the hospital for observation directly after delivery, and to improve the relevant laboratory tests and ultrasound, fetal heartbeat monitoring, etc.