Bump on opening of vagina

I had a first degree tear while delivering. I never looked down there thoroughly but today I decided to go ahead and see how it looks. I gave birth almost 5 weeks ago so I know my stitches should be dissolved. I looked and noticed a bump or something sitting on the opening of my vagina when I opened it. Not sure what it is and it’s just one. Doesn’t hurt as I didn’t even know it was there so I wonder what it is.. maybe my vagina isn’t fully healed and its something that needs to heal or what.. I gave birth vaginally.