Replying to Slight bulge in base

How bad is it to have a slight bulge in your ski base. It is barley noticeable, but if i get up close there is an almost perfect circle like protrusion right underfoot.

it has been a lot of thin cover skiing here on the east coast and i think it may have happened form hitting a rock or something. Interestingly enough there is not crape or gouge or crater like depression, just a circle like bulge smaller than a dime.

i can post pics later today if anyone would like.