So my boy guinea pig has some lumps on his belly. We vet to the vet they took a sample, came back as having skin cells, red blood cells and some fatty cells. The vets think its lipoma. They spoke about surgery but i dont want to put him through surgery if not needed. I already lost two after surgery. He is not is any pain and is happy out. Iv read soo much on what it could be and I keep comimg back to lipoma. I am unsure what to do.