Hanna had the kind of stitches that need to be taken out. She got spayed on a Wed., and on Sunday she had a big lump by the stitches! I freaked out, and called the emergency vet. They asked me a few questions, and as long as she was eating and pooping they said it could wait until Monday. Monday morning I took her in, and just by feeling the lump they reassured me it was an inflammation - not a hernia as I had thought.

Good luck, it sounds like an infection. They will probably make her wear a cone