suzyandtheauburnbourbon
New Born Pup
we recently discovered a pea sized lump on my 4 year old guinea pig's rump. there have been no changes in his behaviour and he doesn't seem to be in pain or react when we touch the lump. we have googled guinea pig tumours but his doesn't look anything like the photos online. He hasn't had any hair loss or anything and the lump is the same colour as his skin. there is no sign of pus to suggest that it is cystic or infected. should we take him to the vet immediately or should we wait to see if there is any change? does anyone know whether it is likely that this is a malignant tumour? thanks in advance