I had a bump under my tongue for a long time and i got surgery on it and they like cut it open and didnt close it. He said he will just leave it open so that the fluid will come out. And it closed up and sometimes it turns read and becomes hard. And sometimes when this happens i think the bump is coming back. Can someone tell me if this is normal. I asked my aunt she is a dentist and she said thats normal because its forming a scab.