Compulsive nail-biting, skin-picking ... in some extreme cases can become life-threatening. Cases of sepsis, a severe reaction to an infection, have been linked to skin-picking.

Another confessed nail biting had also given them medical issues, writing: 'It literally took trigeminal neuralgia (sudden and severe facial pain) to get me to stop biting my nails.' According to ...

Autophagia, also known as self-cannibalism, is a rare and disturbing condition where individuals feel compelled to consume parts of their own bodies. From nail-biting to severe self-mutilation, this ...