As a tree grows, its root system can extend twice as wide as its canopy below ground. If those tree roots find their way under your concrete slab, they can lift it out of place and create annoying trip hazards. If your concrete slab is a sidewalk, you could get away with relocating your pathway somewhere else. But, if it’s the slab under your home or a driveway, moving your concrete might be too difficult. If the tree is still young, you might be able to relocate it to a better location. But if the tree is old, you might need to consider removing it completely.