There are a number of signs that point to your floor being water damaged including bending or cracking.
Water flood on laminate flooring.
The water is trapped between the slab the laminate get someone you after it with a shop vac.
Flooding or other significant water damage is a different story.
If a small amount of water has leaked toward the edges of the flooring pull up any quarter round shoe molding or baseboards around the perimeter.
Go over every tile individually when you check.
If the water is not pervasive you may be able to extract it with a wet dry vacuum.
When laminate gets saturated by water it absorbs the moisture which in turn breaks down the structure of the flooring.
Water under laminate flooring when the water reaches under laminate flooring the water must be removed immediately.
Just about any way you can get water onto many laminate floors seems to result water damage to many of these laminate floors.
Set up a couple 20 box fans also turn up the heat.
If laminate flooring becomes saturated with water it tends to warp quickly.
As long as you wipe up any spilled water promptly the floor should be no worse for the wear.
When laminate flooring is saturated with water especially for a period of time damage will occur.
The cause of this damage is often such things as a flood slow leak from plumbing improper maintenance and spills.
Unfortunately the situation changes if and when flooding occurs.
Tiles can also be pushed apart by water damage.
Laminate flooring is technically resistant to water damage.