Mucus consists mainly of water and a gel-forming molecule called mucin. The body uses mucus to protect tissues, remove particles, and prevent infections. Mucus is essential for the functioning of many ...

A fistula is an abnormal, tube-like connection that forms between two organs or vessels that are lined with epithelial cells. Fistulas are generally the result of a disease condition, but artificial ...

A mucus plug is a formation of mucus in the cervical canal meant to protect the cervix from bacteria and infection. As labor approaches, you will lose your mucus plug. This may happen several hours or ...