No. Docs still think that DHT causes prostate enlargement–>cancer. However, all of the research points to estrogens as the problem. And with age and falling T levels, estrogen dominance can occur without abnormal levels of estrogens. DHT used to be available via compounding pharmacies, but the off-shore FDA approved supplier to USA compounding pharmacies was loss with the pre Chinese Olympics crack down on steroid diversions in China and no one has developed a new source. I tried to get DHT compounded, for libido, but there is no option for that now.
Because prostate cancers are androgen sensitive, small minds assumed that the problem are caused by adrogens. But is appears that low T and elevated estrogens are the cause. Compounding this problem is the way that prostate cancer is managed by androgen deprivation. Androgen deprivation causes the prostate to whither, diseased or not. Again an opportunity to think that adrogens are the cause.
Another issue is the lack of sex in many older males. Without ejaculation, seminal fluid does not get evacuated and it gets stale and rancid. There is then inflammation and the action of this inflammation on the prostate is thought to be a cause or contributor. So there is value in TRT to support sexual activity as a prostate health measure. That is way off of the radar for the medical community.
DHT is mission critical for development and maintenance of the sex organs, virilization and mission critical for libido. 5-alpha-reductase inhibitors for hair loss do a lot of damage. The drugs do not cause harm in many cases, low DHT causes harm. But for some, these drugs cause epi-genetic damage to the HPTA and may cause epi-genetic changes to parts of the brain that control libido.