BITTEN is a 2014 short film in the Chiller anthology film Chilling Visions: 5 States of Fear, directed by John Poliquin.

A young woman's body is used as a breeding host for a terrifying genetically-modified species of ticks, forcing her own self-mutilation in a desperate attempt to survive. 

John Poliquin, of Grave Encounters 2 fame, brings in the goriest short of the bunch, Tick Warning, which reflects our fear of mutilation back in our skinless faces.
— Nick Venable, Cinemablend

Warning: Graphic content.

5 States of Fear is an anthology that I can assuredly recommend viewing... The work of the directors and their crews is excellent... You have won this round Chiller TV.

Easily the grossest and most gory of all the shorts it also has this dream-like quality to it that quickly turns into a nightmare. Definitely not for the squeamish.
— Andrew Mack, Twitch Film