if they were properly manufactured, they shouldn’t. Like regular locs, the kinky nature of the extensions used to create the locs themselves makes it almost impossible to unravel. Unless intentional pressure is placed on the hair like if it gets caught on something, it should not. However, you can fix it by wrapping any loose pieces around the main stem of the loc and securing it with a small not. This works for any pieces that unravel at any length of the loc.