What Does a Mucus Plug Look Like?

During pregnancy, a mucus plug seals the cervix and helps keep bacteria from entering the uterus. As the cervix gradually opens in preparation for labor and delivery, the plug -- which can look like a jelly-like piece of discharge -- comes out. However, many women don't notice losing the mucus plug due to the high levels of vaginal discharge they experience near the end of pregnancy.

What Does the Mucus Plug Look Like?

The mucus plug often looks like a jelly-like chunk of discharge that is clear, slightly pink, or tinged with a small amount of blood. Sometimes, instead of a jelly-like chunk, in some women the mucus plug looks like stringy mucus or a sticky discharge.
 
While blood in the mucus plug can be normal, the amount of blood is generally a spot -- no more than a teaspoon or two. If you have more blood than that, contact your healthcare provider.
 

What Is the Purpose of the Mucus Plug?

During pregnancy, the mucus plug acts as a barrier at the entrance of the cervix.
 It seals the cervix and prevents bacteria from entering the uterus.
 
Remember, the mucus plug only seals the cervix -- so losing your mucus plug does not mean the amniotic sac is open to infection. The amniotic sac is still sealed until your water breaks.
 

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Written by/reviewed by: Arthur Schoenstadt, MD
Last reviewed by: Arthur Schoenstadt, MD
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