Do viewing urinary canal and infusing medicine into the canal invalidate fasting?

The devices inserted into the urinary canal and the medicine infused into the canal do not invalidate fasting (Decision by HBRA dated 22.09.2005; see. Marghinani, al-Hidayah, II, 264, Kasani, Bada’i, II, 98).

Source: Presidency Of Religious Affairs The Turkey, High Board of Religious Affairs FATWAS

Do Having Endoscopy Or Colonoscopy And Having Anal Or Vaginal Ultrasonography Invalidate The Fast?