Instead, why doesn’t medical science try to find the cause of prostate cancer.
I think the cause of many cancers is simply "human frailty". Chromosomes are very complex molecules that many cells in the body must be able to duplicate EXACTLY and sometimes that duplication must be carried on many, many times.
The mechanism for duplicating these complex molecules is itself extremely complicated and subject to external interference from unavoidable environmental processes.
As long as most people reach child-bearing years there will be little evolutionary pressure to make the process better. It's simply good enough as it is. That is why we have about 8 billion people on the earth.
As some point, perhaps when we have 800 billion people, the conditions will become so bad that population will limit itself due to those conditions and our population will stabilize; with the inevitable fluctuations, of course.
I am actually pretty enthused about this development. I can foresee using focused sound to ablate tumors throughout the body, hopefully with extremely early detection, such that little damage is done. With the possible exception of the brain, I think this might be doable.
The necessity to insert a probe to get close to the tumor may be eliminated if the sound creation device is large enough to be located outside the body. The system might be similar to the device used to create fusion energy; that is multiple transducers all generating a small sound wave and pointed precisely so as to hit a small, cancerous target.
They know the cause............lack of use!..................... ;^)