1. 
   Hostile Mucus
   Cervical mucus that prohibits the natural progress of sperm through the cervical canal. Hostile mucus is abnormally thick and sperm are not able to penetrate which does not allow for conception.
   Found op http://www.pregnology.com/AZ/H/3
   
   
2. 
   Hostile Mucus
   Cervical mucus that impedes the natural progress of sperm through the cervical canal.
   Found op http://www.thebridgecentre.co.uk/04_causesofinfertility/glossary_of_terms.h
   
   

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