A mucus plug is a collection of mucus that forms in the cervical canal during pregnancy. This natural barrier functions to seal the cervix, protecting the uterus and the developing fetus from bacteria and potential infections.
What the Mucus Plug Looks Like
The mucus plug can vary in appearance, but it generally has a thick, gel-like consistency. It may be clear, off-white, or yellowish. Sometimes, it can be tinged with pink, brown, or red, often called “bloody show.” This color results from small blood vessels in the cervix breaking as it begins to soften and open in preparation for labor.
Its texture is sticky and stringy, similar to mucus you might cough up during a cold. It can appear as a single glob or in smaller, fragmented pieces over several hours or days. While it can measure about 1 to 2 inches in length and around 1 to 2 tablespoons in volume, its appearance can differ significantly from person to person.
Normal Amount and What Its Loss Means
The amount of mucus plug that comes out varies greatly among individuals. It can be a small glob, a larger piece, or discharge gradually over several days. Some people may not notice its loss, especially if it comes out in smaller pieces or during urination.
The loss of the mucus plug signifies that the cervix is starting to prepare for labor, but it does not mean labor is imminent. It can happen hours, days, or even weeks before labor begins.
The body continuously produces cervical mucus throughout pregnancy, so even if the plug is lost, new mucus continues to form, offering ongoing protection. Losing the mucus plug is considered a normal part of late pregnancy, occurring after 37 weeks. However, some individuals may lose it earlier, which warrants communication with a healthcare provider.
When to Contact Your Healthcare Provider
While losing the mucus plug is a normal part of late pregnancy, there are specific situations where contacting your healthcare provider is advised. If the mucus plug comes out significantly before full term (before 37 weeks), it is important to inform your doctor or midwife. This could indicate preterm cervical changes.
You should also contact your healthcare provider if you experience a large amount of bright red blood, especially if it’s more than just streaks mixed with mucus. Heavy bleeding could signal a more serious issue, such as placental abruption or placenta previa, which requires immediate medical attention.
A sudden gush of clear fluid from the vagina, often referred to as your “water breaking,” warrants an immediate call, as this indicates ruptured membranes. If the loss of the mucus plug is accompanied by other concerning symptoms like severe abdominal pain, fever, or if the discharge appears green or foul-smelling, seek medical advice promptly to rule out infection or other complications.