Onychophagy

Literally 'Nail Biting Disease', Onychophagy occurs purely by 'nail biting'. As with Onychauxis, Onychatrophia and Onchorrexis, the word part 'Onych' refers to 'deterioration of nail'. So nail biting dissolves the structure of the nail, literally deteriorating it.

APPEARANCE

Hence the name 'Bitten Nails', the nails literally are chewed away and there usually isn't much of the free edge remaining. Sometimes bacteria could even form, as some nails can have tinges of yellow. Skin can also be affected too, and signs can include dried skin and wounds.

CAUSES

As Onychophagy stands for, the habit of nail biting.

WILL THIS AFFECT THE PROCEDURE?

Nail work, aside from buffing, could still be able to be treated. 

TREATMENTS/POSSIBLE ALTERNATIVES

The only way to stop Onychophagy is to stop the habit of nail biting. This habit is related to psychological health, so there needs to be reminders set for the client to not bite. While manicurists may not have the exact knowledge as psychologists do, general reminders that could be set up is to apply special clear nail polish- one that is safe and non-toxic. This is bitter and can discourage the person from biting any further.

BIBLIOGRAPHY

https://nailsbiters.wordpress.com/onycophagy/what-is-onychophagie-in-english/
http://www.skinnail.com/eng/skin-nail-onychophagy
https://www.psychologytoday.com/blog/intense-emotions-and-strong-feelings/201205/reforming-the-nail-biter
http://www.bbc.com/future/story/20140710-why-do-we-bite-our-nails