Hi all, my boy guinea pig Fudge was neuterd 3 weeks ago everything seemed to heal fine he's eating, drinking, toileting as normal but was noticed he had what was a small lump around by his penis which vet thought was just swelling from the op had metacam for 5 days but lump still remained but was causing no pain etc fast forward to tonight when I got Fudge out for cuddles and the lump has grown massively it's moveable and doesn't appear to be causing Fudge any pain still eating drinking etc as normal, I've put a dry towel in his cage tonight to check he is weeing but he is deff pooping as normal. I'm going to ring vets as soon as they open tommorow to bring his appointment forward as I'm very worried about this lump, as I say it's moveable, not hard and Fudge doesn't flinch or make any noise when it's touched. I'm just wondering if anyone has any ideas what this could be?