A mucus plug is a thick clump of mucus that forms a seal at your cervix (the opening to your uterus) during pregnancy. It protects the fetus from bacteria and other pathogens during pregnancy.

When a person has black or dark-colored mucus, they may have inhaled potentially harmful pollutants. Coughing up black mucus may also be due to an underlying infection or condition. Mucus serves ...

Normal lung tissue is shown on the left. On the right is lung tissue from a person with primary ciliary dyskinesia with a ...

The usual presentation is with poorly controlled asthma. Patients may also present with expectoration of mucus plugs, hemoptysis, constitutional symptoms and radiological opacities. Patients may ...

Nick Blackmer is a librarian, fact-checker, and researcher with more than 20 years of experience in consumer-facing health and wellness content. Extra mucus in your throat and chest is a common ...

First, it’s important to know that fish are covered in a thin layer of mucus. This slimy coating (it is also called a “slime coat”) is known to keep fish healthy by warding off pathogens.

A telltale sign you’re getting sick is excess mucus, and if you’ve ever been desperate to stop coughing and sneezing, you’ve likely examined your mucus color, from yellow to green ...

6 Ingber noted that, in their model, exposure to pregnancy-related hormones gave rise to structures like the mucus plug formed during pregnancy, suggesting the system’s suitability to study pre-term ...