Why do some toddlers bite their fingernails?

4yr old fingernails He use to bite his fingernails it stop since 3mths ago but his fingernails doesn...
finger biting My 3yr old like to bite his fingers...till his fingernails I can't cut for a mth..what...
How do you stop your kids from biting their fingernails?
Bite!! Why do babies like to bite every thing?
Trim fingernails How do you trim your LO's fingernails ?
Snacks for toddlers Hi mummies, when u r eating snacks does your toddler ask for it? And do u let th...
Fingernails issue My lo one has 2 fingernails that appeared rough and dented in. It's not caused by...