Water Break During Pregnancy: How It Happens And What To Do

water break during pregnancy

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Water break signals labor. Therefore, it is a crucial development in the third trimester of your pregnancy. You need to be watchful of excessive flow of fluid but at the same time should not panic if you are urinating more than normal. Sounds complicated? MomJunction makes it easier for you to understand what a water break is, what causes it, how you can track it and take care of yourself.

What Is Water Break During Pregnancy?

Inside the womb, the fetus is surrounded by a membranous fluid-filled sac known as amniotic sac. The sac protects and cushions the baby throughout your pregnancy. When this amniotic sac ruptures, the fluid exudes through the cervix and vagina. The rupturing of the membrane is accompanied by the release of certain hormones and chemicals that start the contractions, which is felt a few hours after the water break (1).

At 34 weeks of gestation, amniotic fluid peaks at around 800ml; however, it reduces to 600ml towards the 40th week (full-term) (2). This fluid is constantly swallowed, inhaled, and expelled by the baby. Moreover, the fluid helps:

[ Read: Leaking Amniotic Fluid ]

  • The fetus to move freely inside the womb.
  • Maintain a constant temperature around the fetus.
  • Proper development of lungs

And when the time comes, it makes your body ready to push out the baby into this world. However, water break doesn’t always indicate labor because, sometimes, it could happen prematurely.

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What Causes Water Break While Pregnancy?

Here are the reasons why water break happens during pregnancy:

  1. As you reach full term during pregnancy, the amniotic sac spontaneously ruptures, and you enter labor. This causes a trickle, a slow leak or a gush of fluid through the vagina (3).

[ Read: How To Induce Labour ]

  1. In case, the water breaks before full-term but after 37 weeks, it is called premature rupture of membranes (PROM). This may happen due to:
  • Infection of the vagina, uterus, or the cervix
  • Extensive stretching of the amniotic sac ( due to too much fluid or carrying multiple babies)
  • Surgery or biopsies of the cervix
  • A history of PROM or PPROM (preterm premature rupture of membrane)

In this case, most of the women go into labor within 24 hours of the water break (4).

  1. If a woman experiences water break before 37 weeks of pregnancy, then it is called Preterm Premature Rupture of Membrane (PPROM). This condition occurs in around 3% of pregnancies and is the reason for one-third of preterm births. The chances of PPROM are high in (5):
  • Women belonging to the lower socioeconomic status
  • Smokers
  • Those who have a history of sexually transmitted infections
  • Women who have had a previous preterm delivery
  • Those who have vaginal bleeding or uterine distension

If your water breaks or PPROM happens between 34 and 37 weeks, the doctor will arrange for your delivery.

However, if the water breaks before 34 weeks, then the doctor will make efforts to postpone the labor by recommending bed rest. You would be prescribed antibiotics to avoid infections and corticosteroids for the baby’s lungs to grow quickly. Labor will be induced once the baby’s lungs grow enough.

Once the water breaks, your baby is no longer protected by the amniotic fluid. But your body continues to produce the fluid to facilitate delivery. Therefore, you need to identify the incident to make sure that you get medical help on time.

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How Do You Know If It Is A Water Break?

Here is how you can check what’s happening with you:

[ Read: Stages Of Childbirth ]

  1. If you notice a sudden gush of fluid wetting your pants, then it could be the amniotic fluid. You may confirm it through the following steps (3):
  • Make your bladder empty.
  • Collect some leaking fluid on a maternity pad. If it has a stench and is yellow in color, it could be urine. If it is colorless and odorless, then it could be the amniotic fluid.
  • Hold your pelvic floor muscle tight (like a Kegel exercise) to control the flow. If the flow stops it is urine; if it continues to leak, it means water has broken.
  1. Ascertain the time, color, and the odor of the discharge.
  1. Water break is usually accompanied by spotting or some flow of blood.
  1. You might have a fever or rise in your body temperature after the water breaks.
  1. Check for your baby movements when you experience excessive fluid flow.

Once you confirm the leak is a water break, do not panic. Instead, call your doctor and take some precautions to make sure that you are holding up until some help arrives.

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Precautions To Be Taken After Water Breaks During Pregnancy

Here are some measures you may take when water leaks :

  1. Call up the hospital or the doctor. Inform them of the situation and follow their instructions.
  1. The water break exposes your baby to infections that travel upward from the vagina. If the doctor thinks that you should wait for up to 12 hours, then they will tell you what to do to protect yourself and your baby from infections. Keep the vaginal area clean and take the other precautions as told by the doctor.
  1. If you are at home or traveling to the hospital, then place a plastic cover on the bed or the car seat to prevent it from wetting.
  1. Wear a maternity pad if the flow is slow or use a towel if it is gushing. This helps you keep your clothes clean. Maternity pad also helps you to collect the sample and show it to the doctor because the flow could contain something more than just the amniotic fluid:
  • If the discharged fluid is in brownish or greenish color, it may indicate that the baby has had its first bowel movement (meconium) inside the womb (6). As your baby breathes that amniotic fluid, the meconium might go into their lungs causing breathing trouble. Collect it on a maternity pad for the doctor to examine. Also, rush to a hospital immediately.
  • Sometimes, the umbilical cord can get swept into the cervix or even the vagina (umbilical cord prolapse) with the gushing amniotic fluid. This happens when the membrane ruptures and the baby has not reached the pelvis. If you notice a loop of the cord at the vaginal opening, then seek immediate medical attention. Prolapse occurs in 1 out of 300 deliveries (7).

Water break is a normal procedure that leads to labor. But when the water is gushing out, you may not immediately know what to do. Seek help from your partner, mother or somebody who is with you. Ask them to contact the hospital immediately. Most importantly, do not panic as it could distress your baby and complicate matters.

During this time, you will be flooded with several questions. Below, we answer a few such questions to keep you prepared for the event.

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[ Read: Baby Crowning ]

Frequently Asked Questions

1. What if the water doesn’t break on its own?

With the onset of labor, the cervix dilates, and the baby’s head drops into the pelvis. If the waters do not break by this time, the doctors use a technique called amniotomy (also termed as artificial rupture of membrane) (1). In this technique, a small hole is made in the amniotic sac using a thin plastic hook to leak the water. This helps start the labor contractions or make them intense if already begun.

2. How does the doctor check for water break?

The doctor can confirm water breaks using two methods. They are:

  1. Placing a speculum into the vagina to check for water pools. The doctor may also collect the swab samples and get them tested for infection.
  1. In the amnicator test, the doctor soaks the swab sample in pH-detecting dye nitrazine yellow. In the presence of amniotic fluid, the nitrizine color changes from yellow to blue-yellow or dark blue, confirming the water break (8).
  1. If both the above tests do not work out, then you need to wait for more fluid flow.

3. What happens if the water breaks with no signs of contractions??

The contractions might start 12 to 24 hours after the water break. If they do not start after 24 hours, then the practitioner might ask you to wait for some more time to see if the contractions start by itself, provided there is no other complication.

If the labor does not start even after 48 hours, then it will be induced through medical interventions (9).

4. How to know if it is a water break or vaginal discharge?

Amniotic fluid is colorless and odorless, whereas the vaginal discharge is thin, milky white mucus. If you notice a mucous-like discharge streaked brown or pink with blood, it might indicate that labor is imminent (10).

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Have you experienced a water break? What did you do then? Let us know in the comments section.

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  • Noor Fadhlyn Othman

    My experienced is different, after my water breaks within 45mins I deliver my son. With less of contractions.