Cancer is common leading cause of death in older cats. This disease is very harmful for the health and immunity just same with cancer in human. If you can identify or knowing the warning signs of your cat health related to cancer, it is very possible for you to save the cat earlier. Once you find cat cancer symptoms, you can tell the veterinarian soon, and it means better the odds that treatment will be successful. Common symptoms of cat cancer are such as lump (seems to be getting bigger), a sore which doesn’t heal in long time, bad bowel or bladder habits, loss of appetite and weight loss, and many others.