Limited, non per-preview evidence appears to show a direct relation between a reduction in the reoccurrence of bladder cancer and the daily use of probiotic supplements.
Yes, we all can benefit from probiotics, and that is an undisputed fact. Live cultured yogurt, sour cream, green onions, garlic, (Im getting hungry) salami's, sauerkraut, and a host of other foods.
However, what I'm talking about here is using a daily additional supplement of probiotics. Spefically, Yakcult and a broad spectrum capsule.
For example, Japanese studies found that giving people with bladder cancer high doses of probiotics can double the time until recurrence (Urol. Int. 1992:49(3):125). In a follow-up study, it was also discovered that the tumors that did recur were less aggressive and took longer to grow (Eur. Urol. 27(2):104). Scientists concluded that "The potential of probiotics to reduce the recurrence rate of bladder cancer is one of the most intriguing examples for the use of probiotics in medical practice" (Eur. Urol. 2005 Mar:47(3):288).
My Urologist said, "it can hurt, and if the benefit is there then great!"
The Scientifict Benefits of Yakult http://yakultme.com/wp-content/uploads/2017/12/No.All-20170605-上気道感染症_Eng-final-2.pdf