Tumor profiling is a laboratory process that analyzes the genetic makeup of a tumor. By examining the DNA, RNA, and proteins in cancer cells, doctors can identify specific mutations and characteristics that drive the growth of the tumor. This information helps in understanding the type of cancer and its potential behavior. The results of tumor profiling can guide treatment decisions, allowing for more personalized therapies. For instance, targeted therapies can be chosen based on the specific mutations found, improving the chances of successful treatment and minimizing unnecessary side effects.