If you are having erratic pain in your lumbar region what is it called?

Erratic pain in the lumbar region is commonly called low back pain or lumbago.

Explanation:

Low back pain, or lumbago, is one of the most common diseases in adults, caused by muscular or bone alterations in the lumbar region.  It can be acute or chronic, and its importance lies in the varying degrees of discapcity it produces.

There are multiple causes of low back pain and, in general terms, it is caused by the compression of sensitive nerve fibers associated with inflammation and muscle contraction.

answer; /// i believe the correct answer is (achilles tendon)(c)