According to Toland, the whole abnormal balls thing was a rumour that predated the war, and wasn't true, according to examinations; one doctor who was brought in after Hitler's personal doctor, Morrell, was found to be prescribing him stomach pills with strychnine in it, took advantage of the access to see if the rumours were true; apparently not.
As for Morrell, he was either a quack, or an overcautious would-be assassin. The stomach pills themselves were not unusual for the time, but Hitler was openly abusing them, thinking there being no harm in taking more than the prescribed dosaqe.
According to Toland, the whole abnormal balls thing was a rumour that predated the war, and wasn't true, according to examinations; one doctor who was brought in after Hitler's personal doctor, Morrell, was found to be prescribing him stomach pills with strychnine in it, took advantage of the access to see if the rumours were true; apparently not.
As for Morrell, he was either a quack, or an overcautious would-be assassin. The stomach pills themselves were not unusual for the time, but Hitler was openly abusing them, thinking there being no harm in taking more than the prescribed dosaqe.
Source: John Toland, Adolf Hitler.