Cancer is a complex disease that can affect any part of the body. It's not a single thing, but rather a group of diseases caused by uncontrolled cell growth.
There is no "look" for cancer. Symptoms vary greatly depending on the type of cancer, its location, and how advanced it is.
If you're worried about cancer, it's important to talk to a medical professional. They can examine you and provide accurate information based on your specific situation.
Please don't hesitate to seek medical advice if you have any concerns about your health.