How long is the critical period for postpartum hemorrhage?

Written by Du Rui Xia

Obstetrics

Updated on February 03, 2025

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Postpartum hemorrhage generally occurs within 24 hours after giving birth, and sometimes it can occur 1-2 weeks postpartum. It is important to pay special attention during this time to see if there is an increase in vaginal secretions or bleeding. Generally, after giving birth, it is necessary to observe in the delivery room for two hours; if there is no bleeding within those two hours, the patient can be moved back to the ward. The main causes of postpartum hemorrhage include poor contraction of the uterus, retained placental tissue, abnormalities in the coagulation function of the woman's blood, and tears in the birth canal.

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Written by Tang Mei Xiang

Obstetrics and Gynecology

1min 18sec

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Postpartum hemorrhage causes

Postpartum hemorrhage (PPH) has four primary causes: 1. Lacerations from difficult labor; 2. Placental factors; 3. Uterine atony; 4. Coagulopathy. Immediately after childbirth, if there is bright red bleeding that includes blood clots, this is considered to be caused by soft birth canal lacerations. Approximately 10 to 15 minutes after delivery of the fetus, if significant bleeding occurs, placental factors should be considered. After the placenta is delivered, if the placenta and membranes are found to be intact and there is still vaginal bleeding, or if there is intermittent heavy vaginal bleeding, and the uterus feels soft and poorly defined upon light palpation, uterine atony should be considered as a likely cause of the heavy bleeding. Lastly, coagulopathy, which leads to continuous, dark red bleeding without clots, can also cause severe postpartum hemorrhage.

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Written by Yue Hua

Obstetrics and Gynecology

58sec

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Measures for postpartum hemorrhage

Postpartum hemorrhage refers to a situation where there is blood loss exceeding 500 milliliters within 24 hours after the birth of a child. Initially, massaging the uterus should be performed, as most of this bleeding is due to poor uterine contraction, and the doctor can press on the uterus from above the patient's lower abdomen. Additionally, high doses of uterotonic drugs can be used to induce uterine contraction. If these measures do not reduce bleeding, packing the uterine cavity with gauze can be employed to stop the bleeding from the uterus. Furthermore, if the bleeding is very severe, embolization of the uterine artery or the internal iliac artery can be done to halt the uterine bleeding.

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Written by Zhang Lu

Obstetrics

54sec

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Can postpartum hemorrhage be treated?

Postpartum hemorrhage refers to bleeding exceeding 800 or 1000 milliliters within a short period after childbirth. It is currently the leading cause of maternal mortality in clinical practice. With the improvement of clinical treatment levels and the enhancement of diagnostic capabilities for postpartum hemorrhage, the vast majority of such cases can be well-managed. The keys to addressing postpartum hemorrhage effectively are early diagnosis and early intervention, which can lead to favorable outcomes. The main causes of postpartum hemorrhage include uterine atony, retained placenta and membranes, injuries to the soft birth canal, and coagulation disorders. When significant postpartum bleeding occurs, it is crucial to carefully investigate these four aspects to identify the cause and intervene accordingly, often leading to successful treatment outcomes.

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Written by Liu Wei Jie

Obstetrics

40sec

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Does postpartum hemorrhage count as dystocia?

Postpartum hemorrhage is one of the very important causes that endanger the lives of mothers. Although hemorrhage is not considered as dystocia, conditions of dystocia can induce severe hemorrhage. This is because complications such as trauma to the birth canal and uterine atony might occur after dystocia. These issues are triggers for severe postpartum hemorrhage. Even in normal cesarean sections, there can be cases of severe postpartum hemorrhage, thus postpartum hemorrhage is not counted as dystocia, but dystocia can easily induce severe postpartum hemorrhage.

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Written by Tang Mei Xiang

Obstetrics and Gynecology

1min 15sec

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The main causes of postpartum hemorrhage

There are four main causes of postpartum hemorrhage: one is uterine atony, two is due to trauma in the soft birth canal, three is due to placental factors, and four is coagulation dysfunction. Uterine atony is the most common cause of postpartum hemorrhage clinically. Various factors can lead to uterine atony, such as maternal exhaustion during labor due to not eating, leading to physical decay, which can also cause uterine atony. Additionally, an excessively large uterus, such as from excessive amniotic fluid, twins, or triplets, can lead to poor uterine contraction and retraction rates after childbirth. As for injuries in the soft birth canal, they mainly occur due to insufficient protection of the perineum during childbirth or inappropriate use of vacuum assistance during the second stage of labor, causing trauma in the soft birth canal. Placental factors include placental adhesion, placenta accreta, partial placental abruption, and retained placenta, all of which can lead to postpartum bleeding due to placental issues.