That may be scar tissue, and the bump may always be there. Just keep an eye on it over the next few months to make sure it doesn't begin to swell again.
1.0 yellowbelly '11 "Rocco"
1.0 spider het ghost '12 "Cliff"
0.1 superpastel '12 "Adelle"
0.0.1 blue tongued skink "Reggie"
15 African cichlids
0.1 french bulldog "Stella"
1.0 pug "Norman"
0.2 domestic shorthair cats "cookie dough" and "Shadow"
60 + bonsai