Will an annular tear at disk l5 get worse an?

Sometimes : Most of these are incidental findings on a MRI & more related to degeneration of the disc leading to a tear of the outer fibers or annulus which can also allow for some disc material to pop out & then that can be a disc herniation. Sometimes, these tears are a sign of disc pain as the disc mechanics are disrupted and just like a torn piece of paper, a tear can further propagate. It can heal too!

Perhaps: As we age so do our disks. They dry out and can develop cracks or fissures. Most of these don't cause patients symptoms. Your disk may dry out or crack more with time but the real question is if that is important to your symptoms. That's why the test has to be correlated with your pain by your doctor.