Tiny cracks on your wall aren't usually problematic.
How To Fix Hairline Cracks In Foundation Wall. How do you know if wall cracks are serious? These are typically not a cause for concern and are uber.
Cracks in Foundation Wall - Basement Wall Cracks from i2.wp.com
There are two kinds of walls: Hairline cracks don't necessarily indicate a structural problem in the wall. Outside of hairline cracks, larger stress cracks occur when a house settles or the ground beneath it shifts.
Cracks in poured concrete walls that are larger than 1/4, cracks which are increasing in size, or cracks which are otherwise indicative of foundation movement should be evaluated by a professional.
Hairline cracks are easy to be fixed. Drylock, chisel and hydraulic cement, or use an epoxy injection technique that i've seen before called. Outside of hairline cracks, larger stress cracks occur when a house settles or the ground beneath it shifts. If it doesn't leak, then doesn't make sense to fix it.