Why isn’t prostate massage recommended by the medical field?

Tell me about it! In America a lot of hospitals and medical centers are based on religion, like there's a "St. David's" or something like that in the name of their hospital, they have a religious center. Good services, but there's going to be some practices they won't ever condone. If you ask for it, they can help. But they'll never ever suggest on their own that a man should have digital stimulation of something in their ass 🙁

Well. . . they wouldn't be making money $$$$ treating your prostate issues by telling you to use an Aneros. 

Remember the first thing they teach you in medical school: "A patient cured is a patient lost." 

The medial and pharmaceutical industry in the USA depends on people actually being sick.  Curing you is not their goal, treating your symptoms until you die is.