Sometimes it never develops beyond this stage. Sometimes it grows rapidly and starts to bleed. Although it does not spread to other parts of the body, it can grow internally as well as externally and compromise internal organs. If the tumour bleeds, it can also get infected. Removal is a simple surgical procedure.
Sore noses are one of the most common gerbil health problems.
Whatever the initial cause, the main problem is that sore becomes infected with bacteria and needs treating with an antibiotic ointment. Again in the UK this has to be prescribed by a vet. Although a sore nose is a trivial ailment in itself, if left untreated the infection can spread to the rest of the body and in rare cases result in fatal septicaemia, so treatment is essential. Often the first time an owner realises there is a tooth problem, is when the gerbil rapidly loses weight but otherwise appears healthy. On examination it will be found to have lost one or more of its front teeth.