What is labor onset?

Oct 13, 2022 Source: Cainiu Health

Dr. Lv Aiming

Introduction

Labor refers to the stage when a pregnant woman reaches full term, during which the uterus exhibits strong and regular contractions and the cervix begins to dilate, leading up to childbirth. During labor, the uterus undergoes rhythmic and intense contractions that gradually cause the cervical opening to widen. As the uterine contractions continue, the fetus is progressively pushed out of the mother's body until delivery is complete.

Generally, labor refers to the stage when a pregnant woman reaches full term and experiences strong uterine contractions along with cervical dilation, leading to the delivery process. Specifically:

During labor, the uterus undergoes regular and intense contractions, causing gradual cervical dilation. As the contractions continue, the fetus is expelled from the mother's body until delivery is complete. If a pregnant woman shows signs of impending labor, she should promptly go to the hospital for examination and be admitted for delivery to ensure safe childbirth and maternal well-being.

After delivery, if lochia (postpartum vaginal discharge) fails to discharge properly, medications such as oxytocin or prostaglandins may be used under medical guidance to enhance uterine contractions and facilitate complete expulsion of lochia. Additionally, drinking an appropriate amount of warm water can promote metabolism and support uterine recovery.

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Can a first baby be delivered vaginally if it hasn't engaged?

The failure of the fetal head to engage in the pelvis is not a criterion for determining whether vaginal delivery is possible. A comprehensive assessment of factors such as fetal size, birth canal, and uterine contractions during late pregnancy is required to determine the feasibility of vaginal delivery. If all factors indicate suitability for vaginal delivery except for lack of engagement, the uterine contractions approaching labor can help promote fetal descent and engagement.

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Frequent and strong fetal movements at 36 weeks of pregnancy

Frequent and strong fetal movements at 36 weeks of pregnancy may be caused by the fetus descending into the pelvis or by intrauterine hypoxia. At 36 weeks, pregnancy has entered the late stage and is approaching labor. About two weeks before delivery, the fetus typically descends into the pelvis, which can make the fetus more active and lead to increased fetal movement. If the increased and strong fetal movements remain within the normal range, they are likely due to the fetus descending into the pelvis.

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What are the reasons for abdominal tightness in pregnant women after prolonged sitting?

In general, abdominal tightness in pregnant women due to prolonged sitting may be related to physiological changes, indigestion, fetal movement, false labor contractions (Braxton Hicks contractions), or signs of threatened miscarriage. It is recommended that patients follow medical advice for symptomatic treatment. Additionally, this symptom may also indicate approaching labor. If the patient experiences any discomfort, prompt medical evaluation at a hospital is advised to avoid delays in diagnosis and treatment.

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Why does pain occur at night but not during the day before labor?

Generally, experiencing pain at night but not during the day before labor may be related to physiological uterine contractions, progesterone levels, fetal movements, dietary influences, or early signs of labor. If the pregnant woman has no other symptoms, there is usually no need for excessive concern; it is recommended to closely monitor the situation. However, if symptoms become severe, prompt medical evaluation at a reputable hospital is advised. Pregnant women should avoid strenuous activities before delivery and pay close attention to changes in fetal movement.