Why Cancers Are Not Just One Disease

Cancer is not a single illness but a collection of over two hundred distinct diseases. Because every cancer type stems from different genetic mutations, a treatment that cures one patient may be completely ineffective for another.

The term cancer is an umbrella label for cells that grow uncontrollably, but the biological drivers vary wildly depending on the organ or tissue involved. Scientists now focus on precision medicine to target the specific genetic errors fueling a patient's tumor. This shift toward personalized care explains why we cannot find one single universal cure for all cancers. Instead, researchers are building a massive library of specialized therapies for every unique case.