It look's like they're what's known as "Body Handles".
They are used to pose items of clothing.
Check the ReadMe that came with the clothing for instructions on how to make them invisible (usually changing the settings for a particular material to fully transparent).
The clothing creator may also have provided a MAT pose to turn them off.

Might also be on the hair.

If this isn't right, then post a close up of the head and shoulders.