My shihtzu maltese cross has a bump in the corner of his eye

Just got my new baby and love her to pieces..I just have a quick question..She has some kind of bump on the inside corner of her eye. It does not seem to bother her, no extra tearing squinting or anything like that. It's like a light pink bump in the inside corner of her eye near the bottom eyelid...Any ideas..I have an appointment at the vet coming up soon...