No doubt hamsters are prone to getting cancer but it is not always true. Male hamsters are more vulnerable to cancer than female hamster. Sometimes hamsters develop lumps and bumps that are mostly present under the skin and feel hard when touched. One of the symptoms of these non malignant cells growth is that hamsters usually chew on them. These lumps are simply drained by the vet and hamsters are given antibiotic treatment afterwards to avoid any infection there. You should show your hamster to a vet soon. Cancer needs biopsy tests to get diagnosed.
