Like Frederick the Great—and many others—Witzleben was troubled by hemorrhoids.* The operation to correct this painful and annoying condition was a routine case of surgery, to be sure, but when Witzleben took a brief sick leave in the spring to have it done, Hitler took advantage of the situation to retire the Field Marshal from active service, replacing him with Rundstedt, who had no stomach for conspiring against the Leader who had so recently treated him so shabbily.