I'm new to Mumsnet & I've found that everyones knowledge has put my mind to rest. However I now have a problem that I cant find any answers to on here & wondered if any one can help. My ds is 8weeks old and two weeks ago I found a lump on his bum. When I took him to see the gp he said it could be an internal pile or abcess. He gave us some antibiotics and some cream. The lump went down but was still there. I seen my gp again this morning & he said he thinks its a fistula and my ds will need treatment at hospital. Does anyone have any experince of this or any advice to give? I am worried as never heard of it before.