Premature rupture of membranes symptoms

Written by Zhang Lu
Obstetrics
Updated on September 14, 2024
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Premature rupture of membranes refers to the rupture of the membranes before labor, and the symptoms of premature rupture of membranes include the following aspects: Firstly, a large amount of fluid will flow out of the vagina. Once the membranes rupture, amniotic fluid will flow out intermittently, releasing a colorless and odorless fluid, which will wet the underwear. Secondly, there may be a small amount of bleeding. When the membranes rupture, the capillaries at the edges of the membranes may bleed slightly, mixing with the amniotic fluid, resulting in some spotting or slight bleeding. Thirdly, there may be abdominal pain and the sensation of contractions. After the rupture of the membranes, this can stimulate the cervix, causing the release of inflammatory mediators from the cervix and inducing uterine contractions, leading to contractions and the sensation of abdominal pain. These are the symptoms of premature rupture of membranes.

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Written by Zhang Lu
Obstetrics
1min 11sec home-news-image

How is premature rupture of membranes diagnosed?

Premature rupture of membranes refers to the rupture of the membranes before labor, with amniotic fluid leaking intermittently. For the diagnosis of premature rupture of membranes, the following methods are primarily used. First, through the symptoms of the patient, when the membranes rupture prematurely, a clear liquid intermittently leaks from the vagina. However, this liquid must be distinguished from vaginal secretions and urine. Second, judgement can be made based on the presence of fern-like crystals in the amniotic fluid. A small amount of the liquid can be taken and observed under a microscope, and if distinct fern-like crystals are observed, it can be concluded that there is premature rupture of membranes. Third, the use of premature rupture of membranes test strips can aid in diagnosis. If the test strip changes color upon contact with the leaking fluid, it can be definitively diagnosed as premature rupture of membranes. Fourth, ultrasound can serve as a supplementary method, as amniotic fluid often decreases with premature rupture of membranes, and an ultrasound can reveal amniotic fluid levels below the normal range.

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Written by Du Rui Xia
Obstetrics
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How long can premature rupture of membranes last?

When premature rupture of membranes occurs, it can last up to 24 hours. If labor has not commenced 24 hours after rupture, pregnancy termination becomes necessary, and one can either induce labor to facilitate a vaginal delivery or opt for a cesarean section. For ruptures occurring between the 28th and 35th weeks of pregnancy, as the baby's lungs are not yet fully developed, it is crucial to administer medication promptly to help mature the fetal lungs and extend the gestational period as much as possible. Once the fetal lung development is adequate, pregnancy should be terminated in a timely manner. For cases of premature rupture of membranes occurring after 36 weeks of pregnancy, where fetal development is generally mature, pregnancy can be terminated more promptly.

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Written by Zhang Lu
Obstetrics
1min 3sec home-news-image

How is premature rupture of membranes diagnosed?

Premature rupture of membranes refers to the rupture of the membranes before the onset of labor, followed by the leakage of amniotic fluid. It is necessary to distinguish premature rupture of membranes from increased vaginal discharge and urinary incontinence. The methods to diagnose premature rupture of membranes include the following aspects: First, symptomatically, after the rupture of membranes, a clear liquid intermittently leaks from the vagina, accompanied by mild abdominal pain or bloody show. Second, after the rupture of membranes, the liquid leaking from the vagina can be tested with pH paper, which in most cases will change color, confirming the diagnosis of premature rupture of membranes. Third, an ultrasound can be used to observe a reduction in the amount of amniotic fluid within the amniotic cavity. Fourth, the leaking fluid can be examined under a microscope to observe "fern-like" crystallization, which can also confirm the diagnosis of premature rupture of membranes.

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Written by Zhang Lu
Obstetrics
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Can premature rupture of membranes be detected?

Premature rupture of membranes refers to the rupture of membranes before labor, manifested as vaginal discharge and abdominal pain, among other symptoms. The diagnosis of premature rupture of membranes is primarily conducted through the following methods: First, based on the patient's symptoms. The most typical symptom of premature rupture of membranes is the discharge of clear fluid from the vagina. This can generally be identified as amniotic fluid by the naked eye, which helps in diagnosing premature rupture of membranes. Second, if the amount of vaginal discharge is minimal, PH test strips can be used for detection. A change in the PH strip may indicate a diagnosis of premature rupture of membranes. Third, an ultrasound can also generally assess premature rupture of membranes, as the amount of amniotic fluid will decrease when the membranes have ruptured. These methods combined can confirm the presence of premature rupture of membranes.

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Written by Zhao Li Li
Obstetrics
1min home-news-image

What will happen to fetal movement if the membranes rupture prematurely?

Generally, if premature rupture of membranes occurs, it is necessary to clearly determine the specific development of the embryo and the specific gestational age. If the fetus is preterm with premature rupture of membranes, it is necessary to promptly provide anti-infection treatment and promote fetal lung maturity among other symptomatic treatments. If the fetus is already at term, it is important to closely monitor the specific condition of cervical dilation and abdominal pain to decide on the mode of delivery. Normally, premature rupture of membranes does not affect fetal movement at all. A fetal heart rate monitoring test can be conducted to clarify the specific situation of the embryo's development within the uterine cavity and whether there is any fetal hypoxia, to comprehensively analyze the situation.