I've come across the term 'Pterygium inversum unguis' in a medical context, but I'm not sure what it means. Can you clarify?
Pterygium inversum unguis or ventral pterygium is characterized by the adherence of the distal portion of the nailbed to the ventral surface of the nail plate.: 788   The condition may be present at birth or acquired, and may cause pain with manipulation of small objects, typing, and close manicuring of the nail.: 788  secondary due to connective tissue disorders

See also
Pterygium unguis
Nail
List of cutaneous conditions


== References ==