Diarrhea

Hello. My cat has had diarrhea for the past couple of days. Should I be concerned?? Thanks!!!

ETA: Diet has not been changed. No changes in routine. Should I get her checked out?

Thats a bit brief. No info about age, whether the cat goes outside, or items around the home that could have been ingested.

But to answer the question, yes a vet visit is always a good idea. In the meantime make a list of anything she could have got into and don't underestimate any cats ability to find trouble.

Since you mentioned no changes in the environment, I would get her checked out. Anytime stools start to vary with no outside influence, it's time to ask the vet.