Medically reviewed by Peter Weiss, MD A mucus plug protects the cervix from bacteria during pregnancy.Losing a mucus plug can indicate the start of labor.Contact your doctor if you lose your mucus ...
The mucus plug is a protective layer made up of sticky mucus that seals the cervix (the opening of the uterus). The cervical canal produces this plug to protect your womb and unborn baby from bacteria ...
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