Nail biting — as well as its close cousins hair pulling, skin picking, knuckle cracking, lip chewing, cheek biting, and other body - focused repetitive habits — usually happens without a conscious decision; instead, we discover ourselves with the aftermath — nubby nails,
a lip callus, or an accumulation of inadvertently pulled - out hair.
Now let's look for the source of many nursing problems — including
the lip callus — a maxillary tie (aka lip tie).
My son has
the lip callus, receding chin, flat philtrum, his tongue bowls when he screams / cries, his outer upper incisors have worn away and he has had so many issues with eating solids (to the point of becoming anemic), he has been constantly congested with ear - infections since he was about 6 months.
All my five had
lip calluses, and I've had great nursing (almost ideal) experiences with each.
Not exact matches
The broad -
lipped bird orchid has a small, diamond - shaped
lip with a central insect - like «
callus» that resembles the female of its wasp pollinator.